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Interface DatabaseMetaData

All Superinterfaces:
Wrapper
```
public interfaceDatabaseMetaDataextendsWrapper
```
Comprehensive information about the database as a whole.
This interface is implemented by driver vendors to let users know the capabilities of a Database Management System (DBMS) in combination with the driver based on JDBC™ technology ("JDBC driver") that is used with it. Different relational DBMSs often support different features, implement features in different ways, and use different data types. In addition, a driver may implement a feature on top of what the DBMS offers. Information returned by methods in this interface applies to the capabilities of a particular driver and a particular DBMS working together. Note that as used in this documentation, the term "database" is used generically to refer to both the driver and DBMS.
A user for this interface is commonly a tool that needs to discover how to deal with the underlying DBMS. This is especially true for applications that are intended to be used with more than one DBMS. For example, a tool might use the methodgetTypeInfo to find out what data types can be used in aCREATE TABLE statement. Or a user might call the methodsupportsCorrelatedSubqueries to see if it is possible to use a correlated subquery orsupportsBatchUpdates to see if it is possible to use batch updates.
SomeDatabaseMetaData methods return lists of information in the form ofResultSet objects. RegularResultSet methods, such asgetString andgetInt, can be used to retrieve the data from theseResultSet objects. If a given form of metadata is not available, an emptyResultSet will be returned. Additional columns beyond the columns defined to be returned by theResultSet object for a given method can be defined by the JDBC driver vendor and must be accessed by theircolumn label.
SomeDatabaseMetaData methods take arguments that are String patterns. These arguments all have names such as fooPattern. Within a pattern String, "%" means match any substring of 0 or more characters, and "_" means match any one character. Only metadata entries matching the search pattern are returned. If a search pattern argument is set tonull, that argument's criterion will be dropped from the search.

Field Summary

Fields
Modifier and Type	Field	Description
`static short`	`attributeNoNulls`	Indicates that`NULL` values might not be allowed.
`static short`	`attributeNullable`	Indicates that`NULL` values are definitely allowed.
`static short`	`attributeNullableUnknown`	Indicates that whether`NULL` values are allowed is not known.
`static int`	`bestRowNotPseudo`	Indicates that the best row identifier is NOT a pseudo column.
`static int`	`bestRowPseudo`	Indicates that the best row identifier is a pseudo column.
`static int`	`bestRowSession`	Indicates that the scope of the best row identifier is the remainder of the current session.
`static int`	`bestRowTemporary`	Indicates that the scope of the best row identifier is very temporary, lasting only while the row is being used.
`static int`	`bestRowTransaction`	Indicates that the scope of the best row identifier is the remainder of the current transaction.
`static int`	`bestRowUnknown`	Indicates that the best row identifier may or may not be a pseudo column.
`static int`	`columnNoNulls`	Indicates that the column might not allow`NULL` values.
`static int`	`columnNullable`	Indicates that the column definitely allows`NULL` values.
`static int`	`columnNullableUnknown`	Indicates that the nullability of columns is unknown.
`static int`	`functionColumnIn`	Indicates that the parameter or column is an IN parameter.
`static int`	`functionColumnInOut`	Indicates that the parameter or column is an INOUT parameter.
`static int`	`functionColumnOut`	Indicates that the parameter or column is an OUT parameter.
`static int`	`functionColumnResult`	Indicates that the parameter or column is a column in a result set.
`static int`	`functionColumnUnknown`	Indicates that type of the parameter or column is unknown.
`static int`	`functionNoNulls`	Indicates that`NULL` values are not allowed.
`static int`	`functionNoTable`	Indicates that the function does not return a table.
`static int`	`functionNullable`	Indicates that`NULL` values are allowed.
`static int`	`functionNullableUnknown`	Indicates that whether`NULL` values are allowed is unknown.
`static int`	`functionResultUnknown`	Indicates that it is not known whether the function returns a result or a table.
`static int`	`functionReturn`	Indicates that the parameter or column is a return value.
`static int`	`functionReturnsTable`	Indicates that the function returns a table.
`static int`	`importedKeyCascade`	For the column`UPDATE_RULE`, indicates that when the primary key is updated, the foreign key (imported key) is changed to agree with it.
`static int`	`importedKeyInitiallyDeferred`	Indicates deferrability.
`static int`	`importedKeyInitiallyImmediate`	Indicates deferrability.
`static int`	`importedKeyNoAction`	For the columns`UPDATE_RULE` and`DELETE_RULE`, indicates that if the primary key has been imported, it cannot be updated or deleted.
`static int`	`importedKeyNotDeferrable`	Indicates deferrability.
`static int`	`importedKeyRestrict`	For the column`UPDATE_RULE`, indicates that a primary key may not be updated if it has been imported by another table as a foreign key.
`static int`	`importedKeySetDefault`	For the columns`UPDATE_RULE` and`DELETE_RULE`, indicates that if the primary key is updated or deleted, the foreign key (imported key) is set to the default value.
`static int`	`importedKeySetNull`	For the columns`UPDATE_RULE` and`DELETE_RULE`, indicates that when the primary key is updated or deleted, the foreign key (imported key) is changed to`NULL`.
`static int`	`procedureColumnIn`	Indicates that the column stores IN parameters.
`static int`	`procedureColumnInOut`	Indicates that the column stores INOUT parameters.
`static int`	`procedureColumnOut`	Indicates that the column stores OUT parameters.
`static int`	`procedureColumnResult`	Indicates that the column stores results.
`static int`	`procedureColumnReturn`	Indicates that the column stores return values.
`static int`	`procedureColumnUnknown`	Indicates that type of the column is unknown.
`static int`	`procedureNoNulls`	Indicates that`NULL` values are not allowed.
`static int`	`procedureNoResult`	Indicates that the procedure does not return a result.
`static int`	`procedureNullable`	Indicates that`NULL` values are allowed.
`static int`	`procedureNullableUnknown`	Indicates that whether`NULL` values are allowed is unknown.
`static int`	`procedureResultUnknown`	Indicates that it is not known whether the procedure returns a result.
`static int`	`procedureReturnsResult`	Indicates that the procedure returns a result.
`static int`	`sqlStateSQL`	A possible return value for the method`DatabaseMetaData.getSQLStateType` which is used to indicate whether the value returned by the method`SQLException.getSQLState` is an SQLSTATE value.
`static int`	`sqlStateSQL99`	A possible return value for the method`DatabaseMetaData.getSQLStateType` which is used to indicate whether the value returned by the method`SQLException.getSQLState` is an SQL99 SQLSTATE value.
`static int`	`sqlStateXOpen`	A possible return value for the method`DatabaseMetaData.getSQLStateType` which is used to indicate whether the value returned by the method`SQLException.getSQLState` is an X/Open (now know as Open Group) SQL CLI SQLSTATE value.
`static short`	`tableIndexClustered`	Indicates that this table index is a clustered index.
`static short`	`tableIndexHashed`	Indicates that this table index is a hashed index.
`static short`	`tableIndexOther`	Indicates that this table index is not a clustered index, a hashed index, or table statistics; it is something other than these.
`static short`	`tableIndexStatistic`	Indicates that this column contains table statistics that are returned in conjunction with a table's index descriptions.
`static int`	`typeNoNulls`	Indicates that a`NULL` value is NOT allowed for this data type.
`static int`	`typeNullable`	Indicates that a`NULL` value is allowed for this data type.
`static int`	`typeNullableUnknown`	Indicates that it is not known whether a`NULL` value is allowed for this data type.
`static int`	`typePredBasic`	Indicates that the data type can be only be used in`WHERE` search clauses that do not use`LIKE` predicates.
`static int`	`typePredChar`	Indicates that the data type can be only be used in`WHERE` search clauses that use`LIKE` predicates.
`static int`	`typePredNone`	Indicates that`WHERE` search clauses are not supported for this type.
`static int`	`typeSearchable`	Indicates that all`WHERE` search clauses can be based on this type.
`static int`	`versionColumnNotPseudo`	Indicates that this version column is NOT a pseudo column.
`static int`	`versionColumnPseudo`	Indicates that this version column is a pseudo column.
`static int`	`versionColumnUnknown`	Indicates that this version column may or may not be a pseudo column.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`boolean`	`allProceduresAreCallable()`	Retrieves whether the current user can call all the procedures returned by the method`getProcedures`.
`boolean`	`allTablesAreSelectable()`	Retrieves whether the current user can use all the tables returned by the method`getTables` in a`SELECT` statement.
`boolean`	`autoCommitFailureClosesAllResultSets()`	Retrieves whether a`SQLException` while autoCommit is`true` indicates that all open ResultSets are closed, even ones that are holdable.
`boolean`	`dataDefinitionCausesTransactionCommit()`	Retrieves whether a data definition statement within a transaction forces the transaction to commit.
`boolean`	`dataDefinitionIgnoredInTransactions()`	Retrieves whether this database ignores a data definition statement within a transaction.
`boolean`	`deletesAreDetected(int type)`	Retrieves whether or not a visible row delete can be detected by calling the method`ResultSet.rowDeleted`.
`boolean`	`doesMaxRowSizeIncludeBlobs()`	Retrieves whether the return value for the method`getMaxRowSize` includes the SQL data types`LONGVARCHAR` and`LONGVARBINARY`.
`boolean`	`generatedKeyAlwaysReturned()`	Retrieves whether a generated key will always be returned if the column name(s) or index(es) specified for the auto generated key column(s) are valid and the statement succeeds.
`ResultSet`	`getAttributes(String catalog,String schemaPattern,String typeNamePattern,String attributeNamePattern)`	Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.
`ResultSet`	`getBestRowIdentifier(String catalog,String schema,String table, int scope, boolean nullable)`	Retrieves a description of a table's optimal set of columns that uniquely identifies a row.
`ResultSet`	`getCatalogs()`	Retrieves the catalog names available in this database.
`String`	`getCatalogSeparator()`	Retrieves the`String` that this database uses as the separator between a catalog and table name.
`String`	`getCatalogTerm()`	Retrieves the database vendor's preferred term for "catalog".
`ResultSet`	`getClientInfoProperties()`	Retrieves a list of the client info properties that the driver supports.
`ResultSet`	`getColumnPrivileges(String catalog,String schema,String table,String columnNamePattern)`	Retrieves a description of the access rights for a table's columns.
`ResultSet`	`getColumns(String catalog,String schemaPattern,String tableNamePattern,String columnNamePattern)`	Retrieves a description of table columns available in the specified catalog.
`Connection`	`getConnection()`	Retrieves the connection that produced this metadata object.
`ResultSet`	`getCrossReference(String parentCatalog,String parentSchema,String parentTable,String foreignCatalog,String foreignSchema,String foreignTable)`	Retrieves a description of the foreign key columns in the given foreign key table that reference the primary key or the columns representing a unique constraint of the parent table (could be the same or a different table).
`int`	`getDatabaseMajorVersion()`	Retrieves the major version number of the underlying database.
`int`	`getDatabaseMinorVersion()`	Retrieves the minor version number of the underlying database.
`String`	`getDatabaseProductName()`	Retrieves the name of this database product.
`String`	`getDatabaseProductVersion()`	Retrieves the version number of this database product.
`int`	`getDefaultTransactionIsolation()`	Retrieves this database's default transaction isolation level.
`int`	`getDriverMajorVersion()`	Retrieves this JDBC driver's major version number.
`int`	`getDriverMinorVersion()`	Retrieves this JDBC driver's minor version number.
`String`	`getDriverName()`	Retrieves the name of this JDBC driver.
`String`	`getDriverVersion()`	Retrieves the version number of this JDBC driver as a`String`.
`ResultSet`	`getExportedKeys(String catalog,String schema,String table)`	Retrieves a description of the foreign key columns that reference the given table's primary key columns (the foreign keys exported by a table).
`String`	`getExtraNameCharacters()`	Retrieves all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).
`ResultSet`	`getFunctionColumns(String catalog,String schemaPattern,String functionNamePattern,String columnNamePattern)`	Retrieves a description of the given catalog's system or user function parameters and return type.
`ResultSet`	`getFunctions(String catalog,String schemaPattern,String functionNamePattern)`	Retrieves a description of the system and user functions available in the given catalog.
`String`	`getIdentifierQuoteString()`	Retrieves the string used to quote SQL identifiers.
`ResultSet`	`getImportedKeys(String catalog,String schema,String table)`	Retrieves a description of the primary key columns that are referenced by the given table's foreign key columns (the primary keys imported by a table).
`ResultSet`	`getIndexInfo(String catalog,String schema,String table, boolean unique, boolean approximate)`	Retrieves a description of the given table's indices and statistics.
`int`	`getJDBCMajorVersion()`	Retrieves the major JDBC version number for this driver.
`int`	`getJDBCMinorVersion()`	Retrieves the minor JDBC version number for this driver.
`int`	`getMaxBinaryLiteralLength()`	Retrieves the maximum number of hex characters this database allows in an inline binary literal.
`int`	`getMaxCatalogNameLength()`	Retrieves the maximum number of characters that this database allows in a catalog name.
`int`	`getMaxCharLiteralLength()`	Retrieves the maximum number of characters this database allows for a character literal.
`int`	`getMaxColumnNameLength()`	Retrieves the maximum number of characters this database allows for a column name.
`int`	`getMaxColumnsInGroupBy()`	Retrieves the maximum number of columns this database allows in a`GROUP BY` clause.
`int`	`getMaxColumnsInIndex()`	Retrieves the maximum number of columns this database allows in an index.
`int`	`getMaxColumnsInOrderBy()`	Retrieves the maximum number of columns this database allows in an`ORDER BY` clause.
`int`	`getMaxColumnsInSelect()`	Retrieves the maximum number of columns this database allows in a`SELECT` list.
`int`	`getMaxColumnsInTable()`	Retrieves the maximum number of columns this database allows in a table.
`int`	`getMaxConnections()`	Retrieves the maximum number of concurrent connections to this database that are possible.
`int`	`getMaxCursorNameLength()`	Retrieves the maximum number of characters that this database allows in a cursor name.
`int`	`getMaxIndexLength()`	Retrieves the maximum number of bytes this database allows for an index, including all of the parts of the index.
`default long`	`getMaxLogicalLobSize()`	Retrieves the maximum number of bytes this database allows for the logical size for a`LOB`.
`int`	`getMaxProcedureNameLength()`	Retrieves the maximum number of characters that this database allows in a procedure name.
`int`	`getMaxRowSize()`	Retrieves the maximum number of bytes this database allows in a single row.
`int`	`getMaxSchemaNameLength()`	Retrieves the maximum number of characters that this database allows in a schema name.
`int`	`getMaxStatementLength()`	Retrieves the maximum number of characters this database allows in an SQL statement.
`int`	`getMaxStatements()`	Retrieves the maximum number of active statements to this database that can be open at the same time.
`int`	`getMaxTableNameLength()`	Retrieves the maximum number of characters this database allows in a table name.
`int`	`getMaxTablesInSelect()`	Retrieves the maximum number of tables this database allows in a`SELECT` statement.
`int`	`getMaxUserNameLength()`	Retrieves the maximum number of characters this database allows in a user name.
`String`	`getNumericFunctions()`	Retrieves a comma-separated list of math functions available with this database.
`ResultSet`	`getPrimaryKeys(String catalog,String schema,String table)`	Retrieves a description of the given table's primary key columns.
`ResultSet`	`getProcedureColumns(String catalog,String schemaPattern,String procedureNamePattern,String columnNamePattern)`	Retrieves a description of the given catalog's stored procedure parameter and result columns.
`ResultSet`	`getProcedures(String catalog,String schemaPattern,String procedureNamePattern)`	Retrieves a description of the stored procedures available in the given catalog.
`String`	`getProcedureTerm()`	Retrieves the database vendor's preferred term for "procedure".
`ResultSet`	`getPseudoColumns(String catalog,String schemaPattern,String tableNamePattern,String columnNamePattern)`	Retrieves a description of the pseudo or hidden columns available in a given table within the specified catalog and schema.
`int`	`getResultSetHoldability()`	Retrieves this database's default holdability for`ResultSet` objects.
`RowIdLifetime`	`getRowIdLifetime()`	Indicates whether or not this data source supports the SQL`ROWID` type, and if so the lifetime for which a`RowId` object remains valid.
`ResultSet`	`getSchemas()`	Retrieves the schema names available in this database.
`ResultSet`	`getSchemas(String catalog,String schemaPattern)`	Retrieves the schema names available in this database.
`String`	`getSchemaTerm()`	Retrieves the database vendor's preferred term for "schema".
`String`	`getSearchStringEscape()`	Retrieves the string that can be used to escape wildcard characters.
`String`	`getSQLKeywords()`	Retrieves a comma-separated list of all of this database's SQL keywords that are NOT also SQL:2003 keywords.
`int`	`getSQLStateType()`	Indicates whether the SQLSTATE returned by`SQLException.getSQLState` is X/Open (now known as Open Group) SQL CLI or SQL:2003.
`String`	`getStringFunctions()`	Retrieves a comma-separated list of string functions available with this database.
`ResultSet`	`getSuperTables(String catalog,String schemaPattern,String tableNamePattern)`	Retrieves a description of the table hierarchies defined in a particular schema in this database.
`ResultSet`	`getSuperTypes(String catalog,String schemaPattern,String typeNamePattern)`	Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database.
`String`	`getSystemFunctions()`	Retrieves a comma-separated list of system functions available with this database.
`ResultSet`	`getTablePrivileges(String catalog,String schemaPattern,String tableNamePattern)`	Retrieves a description of the access rights for each table available in a catalog.
`ResultSet`	`getTables(String catalog,String schemaPattern,String tableNamePattern,String[] types)`	Retrieves a description of the tables available in the given catalog.
`ResultSet`	`getTableTypes()`	Retrieves the table types available in this database.
`String`	`getTimeDateFunctions()`	Retrieves a comma-separated list of the time and date functions available with this database.
`ResultSet`	`getTypeInfo()`	Retrieves a description of all the data types supported by this database.
`ResultSet`	`getUDTs(String catalog,String schemaPattern,String typeNamePattern, int[] types)`	Retrieves a description of the user-defined types (UDTs) defined in a particular schema.
`String`	`getURL()`	Retrieves the URL for this DBMS.
`String`	`getUserName()`	Retrieves the user name as known to this database.
`ResultSet`	`getVersionColumns(String catalog,String schema,String table)`	Retrieves a description of a table's columns that are automatically updated when any value in a row is updated.
`boolean`	`insertsAreDetected(int type)`	Retrieves whether or not a visible row insert can be detected by calling the method`ResultSet.rowInserted`.
`boolean`	`isCatalogAtStart()`	Retrieves whether a catalog appears at the start of a fully qualified table name.
`boolean`	`isReadOnly()`	Retrieves whether this database is in read-only mode.
`boolean`	`locatorsUpdateCopy()`	Indicates whether updates made to a LOB are made on a copy or directly to the LOB.
`boolean`	`nullPlusNonNullIsNull()`	Retrieves whether this database supports concatenations between`NULL` and non-`NULL` values being`NULL`.
`boolean`	`nullsAreSortedAtEnd()`	Retrieves whether`NULL` values are sorted at the end regardless of sort order.
`boolean`	`nullsAreSortedAtStart()`	Retrieves whether`NULL` values are sorted at the start regardless of sort order.
`boolean`	`nullsAreSortedHigh()`	Retrieves whether`NULL` values are sorted high.
`boolean`	`nullsAreSortedLow()`	Retrieves whether`NULL` values are sorted low.
`boolean`	`othersDeletesAreVisible(int type)`	Retrieves whether deletes made by others are visible.
`boolean`	`othersInsertsAreVisible(int type)`	Retrieves whether inserts made by others are visible.
`boolean`	`othersUpdatesAreVisible(int type)`	Retrieves whether updates made by others are visible.
`boolean`	`ownDeletesAreVisible(int type)`	Retrieves whether a result set's own deletes are visible.
`boolean`	`ownInsertsAreVisible(int type)`	Retrieves whether a result set's own inserts are visible.
`boolean`	`ownUpdatesAreVisible(int type)`	Retrieves whether for the given type of`ResultSet` object, the result set's own updates are visible.
`boolean`	`storesLowerCaseIdentifiers()`	Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in lower case.
`boolean`	`storesLowerCaseQuotedIdentifiers()`	Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in lower case.
`boolean`	`storesMixedCaseIdentifiers()`	Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in mixed case.
`boolean`	`storesMixedCaseQuotedIdentifiers()`	Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in mixed case.
`boolean`	`storesUpperCaseIdentifiers()`	Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in upper case.
`boolean`	`storesUpperCaseQuotedIdentifiers()`	Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in upper case.
`boolean`	`supportsAlterTableWithAddColumn()`	Retrieves whether this database supports`ALTER TABLE` with add column.
`boolean`	`supportsAlterTableWithDropColumn()`	Retrieves whether this database supports`ALTER TABLE` with drop column.
`boolean`	`supportsANSI92EntryLevelSQL()`	Retrieves whether this database supports the ANSI92 entry level SQL grammar.
`boolean`	`supportsANSI92FullSQL()`	Retrieves whether this database supports the ANSI92 full SQL grammar supported.
`boolean`	`supportsANSI92IntermediateSQL()`	Retrieves whether this database supports the ANSI92 intermediate SQL grammar supported.
`boolean`	`supportsBatchUpdates()`	Retrieves whether this database supports batch updates.
`boolean`	`supportsCatalogsInDataManipulation()`	Retrieves whether a catalog name can be used in a data manipulation statement.
`boolean`	`supportsCatalogsInIndexDefinitions()`	Retrieves whether a catalog name can be used in an index definition statement.
`boolean`	`supportsCatalogsInPrivilegeDefinitions()`	Retrieves whether a catalog name can be used in a privilege definition statement.
`boolean`	`supportsCatalogsInProcedureCalls()`	Retrieves whether a catalog name can be used in a procedure call statement.
`boolean`	`supportsCatalogsInTableDefinitions()`	Retrieves whether a catalog name can be used in a table definition statement.
`boolean`	`supportsColumnAliasing()`	Retrieves whether this database supports column aliasing.
`boolean`	`supportsConvert()`	Retrieves whether this database supports the JDBC scalar function`CONVERT` for the conversion of one JDBC type to another.
`boolean`	`supportsConvert(int fromType, int toType)`	Retrieves whether this database supports the JDBC scalar function`CONVERT` for conversions between the JDBC typesfromType andtoType.
`boolean`	`supportsCoreSQLGrammar()`	Retrieves whether this database supports the ODBC Core SQL grammar.
`boolean`	`supportsCorrelatedSubqueries()`	Retrieves whether this database supports correlated subqueries.
`boolean`	`supportsDataDefinitionAndDataManipulationTransactions()`	Retrieves whether this database supports both data definition and data manipulation statements within a transaction.
`boolean`	`supportsDataManipulationTransactionsOnly()`	Retrieves whether this database supports only data manipulation statements within a transaction.
`boolean`	`supportsDifferentTableCorrelationNames()`	Retrieves whether, when table correlation names are supported, they are restricted to being different from the names of the tables.
`boolean`	`supportsExpressionsInOrderBy()`	Retrieves whether this database supports expressions in`ORDER BY` lists.
`boolean`	`supportsExtendedSQLGrammar()`	Retrieves whether this database supports the ODBC Extended SQL grammar.
`boolean`	`supportsFullOuterJoins()`	Retrieves whether this database supports full nested outer joins.
`boolean`	`supportsGetGeneratedKeys()`	Retrieves whether auto-generated keys can be retrieved after a statement has been executed
`boolean`	`supportsGroupBy()`	Retrieves whether this database supports some form of`GROUP BY` clause.
`boolean`	`supportsGroupByBeyondSelect()`	Retrieves whether this database supports using columns not included in the`SELECT` statement in a`GROUP BY` clause provided that all of the columns in the`SELECT` statement are included in the`GROUP BY` clause.
`boolean`	`supportsGroupByUnrelated()`	Retrieves whether this database supports using a column that is not in the`SELECT` statement in a`GROUP BY` clause.
`boolean`	`supportsIntegrityEnhancementFacility()`	Retrieves whether this database supports the SQL Integrity Enhancement Facility.
`boolean`	`supportsLikeEscapeClause()`	Retrieves whether this database supports specifying a`LIKE` escape clause.
`boolean`	`supportsLimitedOuterJoins()`	Retrieves whether this database provides limited support for outer joins.
`boolean`	`supportsMinimumSQLGrammar()`	Retrieves whether this database supports the ODBC Minimum SQL grammar.
`boolean`	`supportsMixedCaseIdentifiers()`	Retrieves whether this database treats mixed case unquoted SQL identifiers as case sensitive and as a result stores them in mixed case.
`boolean`	`supportsMixedCaseQuotedIdentifiers()`	Retrieves whether this database treats mixed case quoted SQL identifiers as case sensitive and as a result stores them in mixed case.
`boolean`	`supportsMultipleOpenResults()`	Retrieves whether it is possible to have multiple`ResultSet` objects returned from a`CallableStatement` object simultaneously.
`boolean`	`supportsMultipleResultSets()`	Retrieves whether this database supports getting multiple`ResultSet` objects from a single call to the method`execute`.
`boolean`	`supportsMultipleTransactions()`	Retrieves whether this database allows having multiple transactions open at once (on different connections).
`boolean`	`supportsNamedParameters()`	Retrieves whether this database supports named parameters to callable statements.
`boolean`	`supportsNonNullableColumns()`	Retrieves whether columns in this database may be defined as non-nullable.
`boolean`	`supportsOpenCursorsAcrossCommit()`	Retrieves whether this database supports keeping cursors open across commits.
`boolean`	`supportsOpenCursorsAcrossRollback()`	Retrieves whether this database supports keeping cursors open across rollbacks.
`boolean`	`supportsOpenStatementsAcrossCommit()`	Retrieves whether this database supports keeping statements open across commits.
`boolean`	`supportsOpenStatementsAcrossRollback()`	Retrieves whether this database supports keeping statements open across rollbacks.
`boolean`	`supportsOrderByUnrelated()`	Retrieves whether this database supports using a column that is not in the`SELECT` statement in an`ORDER BY` clause.
`boolean`	`supportsOuterJoins()`	Retrieves whether this database supports some form of outer join.
`boolean`	`supportsPositionedDelete()`	Retrieves whether this database supports positioned`DELETE` statements.
`boolean`	`supportsPositionedUpdate()`	Retrieves whether this database supports positioned`UPDATE` statements.
`default boolean`	`supportsRefCursors()`	Retrieves whether this database supports REF CURSOR.
`boolean`	`supportsResultSetConcurrency(int type, int concurrency)`	Retrieves whether this database supports the given concurrency type in combination with the given result set type.
`boolean`	`supportsResultSetHoldability(int holdability)`	Retrieves whether this database supports the given result set holdability.
`boolean`	`supportsResultSetType(int type)`	Retrieves whether this database supports the given result set type.
`boolean`	`supportsSavepoints()`	Retrieves whether this database supports savepoints.
`boolean`	`supportsSchemasInDataManipulation()`	Retrieves whether a schema name can be used in a data manipulation statement.
`boolean`	`supportsSchemasInIndexDefinitions()`	Retrieves whether a schema name can be used in an index definition statement.
`boolean`	`supportsSchemasInPrivilegeDefinitions()`	Retrieves whether a schema name can be used in a privilege definition statement.
`boolean`	`supportsSchemasInProcedureCalls()`	Retrieves whether a schema name can be used in a procedure call statement.
`boolean`	`supportsSchemasInTableDefinitions()`	Retrieves whether a schema name can be used in a table definition statement.
`boolean`	`supportsSelectForUpdate()`	Retrieves whether this database supports`SELECT FOR UPDATE` statements.
`default boolean`	`supportsSharding()`	Retrieves whether this database supports sharding.
`boolean`	`supportsStatementPooling()`	Retrieves whether this database supports statement pooling.
`boolean`	`supportsStoredFunctionsUsingCallSyntax()`	Retrieves whether this database supports invoking user-defined or vendor functions using the stored procedure escape syntax.
`boolean`	`supportsStoredProcedures()`	Retrieves whether this database supports stored procedure calls that use the stored procedure escape syntax.
`boolean`	`supportsSubqueriesInComparisons()`	Retrieves whether this database supports subqueries in comparison expressions.
`boolean`	`supportsSubqueriesInExists()`	Retrieves whether this database supports subqueries in`EXISTS` expressions.
`boolean`	`supportsSubqueriesInIns()`	Retrieves whether this database supports subqueries in`IN` expressions.
`boolean`	`supportsSubqueriesInQuantifieds()`	Retrieves whether this database supports subqueries in quantified expressions.
`boolean`	`supportsTableCorrelationNames()`	Retrieves whether this database supports table correlation names.
`boolean`	`supportsTransactionIsolationLevel(int level)`	Retrieves whether this database supports the given transaction isolation level.
`boolean`	`supportsTransactions()`	Retrieves whether this database supports transactions.
`boolean`	`supportsUnion()`	Retrieves whether this database supports SQL`UNION`.
`boolean`	`supportsUnionAll()`	Retrieves whether this database supports SQL`UNION ALL`.
`boolean`	`updatesAreDetected(int type)`	Retrieves whether or not a visible row update can be detected by calling the method`ResultSet.rowUpdated`.
`boolean`	`usesLocalFilePerTable()`	Retrieves whether this database uses a file for each table.
`boolean`	`usesLocalFiles()`	Retrieves whether this database stores tables in a local file.

Methods inherited from interface java.sql.Wrapper
isWrapperFor,unwrap

- Field Detail
  - procedureResultUnknown
```
static final int procedureResultUnknown
```
    Indicates that it is not known whether the procedure returns a result.
    A possible value for columnPROCEDURE_TYPE in theResultSet object returned by the methodgetProcedures.
    See Also:
    Constant Field Values
  - procedureNoResult
```
static final int procedureNoResult
```
    Indicates that the procedure does not return a result.
    A possible value for columnPROCEDURE_TYPE in theResultSet object returned by the methodgetProcedures.
    See Also:
    Constant Field Values
  - procedureReturnsResult
```
static final int procedureReturnsResult
```
    Indicates that the procedure returns a result.
    A possible value for columnPROCEDURE_TYPE in theResultSet object returned by the methodgetProcedures.
    See Also:
    Constant Field Values
  - procedureColumnUnknown
```
static final int procedureColumnUnknown
```
    Indicates that type of the column is unknown.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - procedureColumnIn
```
static final int procedureColumnIn
```
    Indicates that the column stores IN parameters.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - procedureColumnInOut
```
static final int procedureColumnInOut
```
    Indicates that the column stores INOUT parameters.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - procedureColumnOut
```
static final int procedureColumnOut
```
    Indicates that the column stores OUT parameters.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - procedureColumnReturn
```
static final int procedureColumnReturn
```
    Indicates that the column stores return values.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - procedureColumnResult
```
static final int procedureColumnResult
```
    Indicates that the column stores results.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - procedureNoNulls
```
static final int procedureNoNulls
```
    Indicates thatNULL values are not allowed.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - procedureNullable
```
static final int procedureNullable
```
    Indicates thatNULL values are allowed.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - procedureNullableUnknown
```
static final int procedureNullableUnknown
```
    Indicates that whetherNULL values are allowed is unknown.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetProcedureColumns.
    See Also:
    Constant Field Values
  - columnNoNulls
```
static final int columnNoNulls
```
    Indicates that the column might not allowNULL values.
    A possible value for the columnNULLABLE in theResultSet returned by the methodgetColumns.
    See Also:
    Constant Field Values
  - columnNullable
```
static final int columnNullable
```
    Indicates that the column definitely allowsNULL values.
    A possible value for the columnNULLABLE in theResultSet returned by the methodgetColumns.
    See Also:
    Constant Field Values
  - columnNullableUnknown
```
static final int columnNullableUnknown
```
    Indicates that the nullability of columns is unknown.
    A possible value for the columnNULLABLE in theResultSet returned by the methodgetColumns.
    See Also:
    Constant Field Values
  - bestRowTemporary
```
static final int bestRowTemporary
```
    Indicates that the scope of the best row identifier is very temporary, lasting only while the row is being used.
    A possible value for the columnSCOPE in theResultSet object returned by the methodgetBestRowIdentifier.
    See Also:
    Constant Field Values
  - bestRowTransaction
```
static final int bestRowTransaction
```
    Indicates that the scope of the best row identifier is the remainder of the current transaction.
    A possible value for the columnSCOPE in theResultSet object returned by the methodgetBestRowIdentifier.
    See Also:
    Constant Field Values
  - bestRowSession
```
static final int bestRowSession
```
    Indicates that the scope of the best row identifier is the remainder of the current session.
    A possible value for the columnSCOPE in theResultSet object returned by the methodgetBestRowIdentifier.
    See Also:
    Constant Field Values
  - bestRowUnknown
```
static final int bestRowUnknown
```
    Indicates that the best row identifier may or may not be a pseudo column.
    A possible value for the columnPSEUDO_COLUMN in theResultSet object returned by the methodgetBestRowIdentifier.
    See Also:
    Constant Field Values
  - bestRowNotPseudo
```
static final int bestRowNotPseudo
```
    Indicates that the best row identifier is NOT a pseudo column.
    A possible value for the columnPSEUDO_COLUMN in theResultSet object returned by the methodgetBestRowIdentifier.
    See Also:
    Constant Field Values
  - bestRowPseudo
```
static final int bestRowPseudo
```
    Indicates that the best row identifier is a pseudo column.
    A possible value for the columnPSEUDO_COLUMN in theResultSet object returned by the methodgetBestRowIdentifier.
    See Also:
    Constant Field Values
  - versionColumnUnknown
```
static final int versionColumnUnknown
```
    Indicates that this version column may or may not be a pseudo column.
    A possible value for the columnPSEUDO_COLUMN in theResultSet object returned by the methodgetVersionColumns.
    See Also:
    Constant Field Values
  - versionColumnNotPseudo
```
static final int versionColumnNotPseudo
```
    Indicates that this version column is NOT a pseudo column.
    A possible value for the columnPSEUDO_COLUMN in theResultSet object returned by the methodgetVersionColumns.
    See Also:
    Constant Field Values
  - versionColumnPseudo
```
static final int versionColumnPseudo
```
    Indicates that this version column is a pseudo column.
    A possible value for the columnPSEUDO_COLUMN in theResultSet object returned by the methodgetVersionColumns.
    See Also:
    Constant Field Values
  - importedKeyCascade
```
static final int importedKeyCascade
```
    For the columnUPDATE_RULE, indicates that when the primary key is updated, the foreign key (imported key) is changed to agree with it. For the columnDELETE_RULE, it indicates that when the primary key is deleted, rows that imported that key are deleted.
    A possible value for the columnsUPDATE_RULE andDELETE_RULE in theResultSet objects returned by the methodsgetImportedKeys,getExportedKeys, andgetCrossReference.
    See Also:
    Constant Field Values
  - importedKeyRestrict
```
static final int importedKeyRestrict
```
    For the columnUPDATE_RULE, indicates that a primary key may not be updated if it has been imported by another table as a foreign key. For the columnDELETE_RULE, indicates that a primary key may not be deleted if it has been imported by another table as a foreign key.
    A possible value for the columnsUPDATE_RULE andDELETE_RULE in theResultSet objects returned by the methodsgetImportedKeys,getExportedKeys, andgetCrossReference.
    See Also:
    Constant Field Values
  - importedKeySetNull
```
static final int importedKeySetNull
```
    For the columnsUPDATE_RULE andDELETE_RULE, indicates that when the primary key is updated or deleted, the foreign key (imported key) is changed toNULL.
    A possible value for the columnsUPDATE_RULE andDELETE_RULE in theResultSet objects returned by the methodsgetImportedKeys,getExportedKeys, andgetCrossReference.
    See Also:
    Constant Field Values
  - importedKeyNoAction
```
static final int importedKeyNoAction
```
    For the columnsUPDATE_RULE andDELETE_RULE, indicates that if the primary key has been imported, it cannot be updated or deleted.
    A possible value for the columnsUPDATE_RULE andDELETE_RULE in theResultSet objects returned by the methodsgetImportedKeys,getExportedKeys, andgetCrossReference.
    See Also:
    Constant Field Values
  - importedKeySetDefault
```
static final int importedKeySetDefault
```
    For the columnsUPDATE_RULE andDELETE_RULE, indicates that if the primary key is updated or deleted, the foreign key (imported key) is set to the default value.
    A possible value for the columnsUPDATE_RULE andDELETE_RULE in theResultSet objects returned by the methodsgetImportedKeys,getExportedKeys, andgetCrossReference.
    See Also:
    Constant Field Values
  - importedKeyInitiallyDeferred
```
static final int importedKeyInitiallyDeferred
```
    Indicates deferrability. See SQL-92 for a definition.
    A possible value for the columnDEFERRABILITY in theResultSet objects returned by the methodsgetImportedKeys,getExportedKeys, andgetCrossReference.
    See Also:
    Constant Field Values
  - importedKeyInitiallyImmediate
```
static final int importedKeyInitiallyImmediate
```
    Indicates deferrability. See SQL-92 for a definition.
    A possible value for the columnDEFERRABILITY in theResultSet objects returned by the methodsgetImportedKeys,getExportedKeys, andgetCrossReference.
    See Also:
    Constant Field Values
  - importedKeyNotDeferrable
```
static final int importedKeyNotDeferrable
```
    Indicates deferrability. See SQL-92 for a definition.
    A possible value for the columnDEFERRABILITY in theResultSet objects returned by the methodsgetImportedKeys,getExportedKeys, andgetCrossReference.
    See Also:
    Constant Field Values
  - typeNoNulls
```
static final int typeNoNulls
```
    Indicates that aNULL value is NOT allowed for this data type.
    A possible value for columnNULLABLE in theResultSet object returned by the methodgetTypeInfo.
    See Also:
    Constant Field Values
  - typeNullable
```
static final int typeNullable
```
    Indicates that aNULL value is allowed for this data type.
    A possible value for columnNULLABLE in theResultSet object returned by the methodgetTypeInfo.
    See Also:
    Constant Field Values
  - typeNullableUnknown
```
static final int typeNullableUnknown
```
    Indicates that it is not known whether aNULL value is allowed for this data type.
    A possible value for columnNULLABLE in theResultSet object returned by the methodgetTypeInfo.
    See Also:
    Constant Field Values
  - typePredNone
```
static final int typePredNone
```
    Indicates thatWHERE search clauses are not supported for this type.
    A possible value for columnSEARCHABLE in theResultSet object returned by the methodgetTypeInfo.
    See Also:
    Constant Field Values
  - typePredChar
```
static final int typePredChar
```
    Indicates that the data type can be only be used inWHERE search clauses that useLIKE predicates.
    A possible value for columnSEARCHABLE in theResultSet object returned by the methodgetTypeInfo.
    See Also:
    Constant Field Values
  - typePredBasic
```
static final int typePredBasic
```
    Indicates that the data type can be only be used inWHERE search clauses that do not useLIKE predicates.
    A possible value for columnSEARCHABLE in theResultSet object returned by the methodgetTypeInfo.
    See Also:
    Constant Field Values
  - typeSearchable
```
static final int typeSearchable
```
    Indicates that allWHERE search clauses can be based on this type.
    A possible value for columnSEARCHABLE in theResultSet object returned by the methodgetTypeInfo.
    See Also:
    Constant Field Values
  - tableIndexStatistic
```
static final short tableIndexStatistic
```
    Indicates that this column contains table statistics that are returned in conjunction with a table's index descriptions.
    A possible value for columnTYPE in theResultSet object returned by the methodgetIndexInfo.
    See Also:
    Constant Field Values
  - tableIndexClustered
```
static final short tableIndexClustered
```
    Indicates that this table index is a clustered index.
    A possible value for columnTYPE in theResultSet object returned by the methodgetIndexInfo.
    See Also:
    Constant Field Values
  - tableIndexHashed
```
static final short tableIndexHashed
```
    Indicates that this table index is a hashed index.
    A possible value for columnTYPE in theResultSet object returned by the methodgetIndexInfo.
    See Also:
    Constant Field Values
  - tableIndexOther
```
static final short tableIndexOther
```
    Indicates that this table index is not a clustered index, a hashed index, or table statistics; it is something other than these.
    A possible value for columnTYPE in theResultSet object returned by the methodgetIndexInfo.
    See Also:
    Constant Field Values
  - attributeNoNulls
```
static final short attributeNoNulls
```
    Indicates thatNULL values might not be allowed.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetAttributes.
    See Also:
    Constant Field Values
  - attributeNullable
```
static final short attributeNullable
```
    Indicates thatNULL values are definitely allowed.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetAttributes.
    See Also:
    Constant Field Values
  - attributeNullableUnknown
```
static final short attributeNullableUnknown
```
    Indicates that whetherNULL values are allowed is not known.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetAttributes.
    See Also:
    Constant Field Values
  - sqlStateXOpen
```
static final int sqlStateXOpen
```
    A possible return value for the methodDatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the methodSQLException.getSQLState is an X/Open (now know as Open Group) SQL CLI SQLSTATE value.
    Since:
    1.4
    See Also:
    Constant Field Values
  - sqlStateSQL
```
static final int sqlStateSQL
```
    A possible return value for the methodDatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the methodSQLException.getSQLState is an SQLSTATE value.
    Since:
    1.6
    See Also:
    Constant Field Values
  - sqlStateSQL99
```
static final int sqlStateSQL99
```
    A possible return value for the methodDatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the methodSQLException.getSQLState is an SQL99 SQLSTATE value.
    Note:This constant remains only for compatibility reasons. Developers should use the constantsqlStateSQL instead.
    Since:
    1.4
    See Also:
    Constant Field Values
  - functionColumnUnknown
```
static final int functionColumnUnknown
```
    Indicates that type of the parameter or column is unknown.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetFunctionColumns.
    See Also:
    Constant Field Values
  - functionColumnIn
```
static final int functionColumnIn
```
    Indicates that the parameter or column is an IN parameter.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetFunctionColumns.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionColumnInOut
```
static final int functionColumnInOut
```
    Indicates that the parameter or column is an INOUT parameter.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetFunctionColumns.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionColumnOut
```
static final int functionColumnOut
```
    Indicates that the parameter or column is an OUT parameter.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetFunctionColumns.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionReturn
```
static final int functionReturn
```
    Indicates that the parameter or column is a return value.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetFunctionColumns.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionColumnResult
```
static final int functionColumnResult
```
    Indicates that the parameter or column is a column in a result set.
    A possible value for the columnCOLUMN_TYPE in theResultSet returned by the methodgetFunctionColumns.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionNoNulls
```
static final int functionNoNulls
```
    Indicates thatNULL values are not allowed.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetFunctionColumns.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionNullable
```
static final int functionNullable
```
    Indicates thatNULL values are allowed.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetFunctionColumns.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionNullableUnknown
```
static final int functionNullableUnknown
```
    Indicates that whetherNULL values are allowed is unknown.
    A possible value for the columnNULLABLE in theResultSet object returned by the methodgetFunctionColumns.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionResultUnknown
```
static final int functionResultUnknown
```
    Indicates that it is not known whether the function returns a result or a table.
    A possible value for columnFUNCTION_TYPE in theResultSet object returned by the methodgetFunctions.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionNoTable
```
static final int functionNoTable
```
    Indicates that the function does not return a table.
    A possible value for columnFUNCTION_TYPE in theResultSet object returned by the methodgetFunctions.
    Since:
    1.6
    See Also:
    Constant Field Values
  - functionReturnsTable
```
static final int functionReturnsTable
```
    Indicates that the function returns a table.
    A possible value for columnFUNCTION_TYPE in theResultSet object returned by the methodgetFunctions.
    Since:
    1.6
    See Also:
    Constant Field Values
- Method Detail
  - allProceduresAreCallable
```
boolean allProceduresAreCallable()                          throwsSQLException
```
    Retrieves whether the current user can call all the procedures returned by the methodgetProcedures.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - allTablesAreSelectable
```
boolean allTablesAreSelectable()                        throwsSQLException
```
    Retrieves whether the current user can use all the tables returned by the methodgetTables in aSELECT statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - getURL
```
String getURL()       throwsSQLException
```
    Retrieves the URL for this DBMS.
    Returns:
    the URL for this DBMS ornull if it cannot be generated
    Throws:
    SQLException - if a database access error occurs
  - getUserName
```
String getUserName()            throwsSQLException
```
    Retrieves the user name as known to this database.
    Returns:
    the database user name
    Throws:
    SQLException - if a database access error occurs
  - isReadOnly
```
boolean isReadOnly()            throwsSQLException
```
    Retrieves whether this database is in read-only mode.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - nullsAreSortedHigh
```
boolean nullsAreSortedHigh()                    throwsSQLException
```
    Retrieves whetherNULL values are sorted high. Sorted high means thatNULL values sort higher than any other value in a domain. In an ascending order, if this method returnstrue,NULL values will appear at the end. By contrast, the methodnullsAreSortedAtEnd indicates whetherNULL values are sorted at the end regardless of sort order.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - nullsAreSortedLow
```
boolean nullsAreSortedLow()                   throwsSQLException
```
    Retrieves whetherNULL values are sorted low. Sorted low means thatNULL values sort lower than any other value in a domain. In an ascending order, if this method returnstrue,NULL values will appear at the beginning. By contrast, the methodnullsAreSortedAtStart indicates whetherNULL values are sorted at the beginning regardless of sort order.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - nullsAreSortedAtStart
```
boolean nullsAreSortedAtStart()                       throwsSQLException
```
    Retrieves whetherNULL values are sorted at the start regardless of sort order.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - nullsAreSortedAtEnd
```
boolean nullsAreSortedAtEnd()                     throwsSQLException
```
    Retrieves whetherNULL values are sorted at the end regardless of sort order.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - getDatabaseProductName
```
String getDatabaseProductName()                       throwsSQLException
```
    Retrieves the name of this database product.
    Returns:
    database product name
    Throws:
    SQLException - if a database access error occurs
  - getDatabaseProductVersion
```
String getDatabaseProductVersion()                          throwsSQLException
```
    Retrieves the version number of this database product.
    Returns:
    database version number
    Throws:
    SQLException - if a database access error occurs
  - getDriverName
```
String getDriverName()              throwsSQLException
```
    Retrieves the name of this JDBC driver.
    Returns:
    JDBC driver name
    Throws:
    SQLException - if a database access error occurs
  - getDriverVersion
```
String getDriverVersion()                 throwsSQLException
```
    Retrieves the version number of this JDBC driver as aString.
    Returns:
    JDBC driver version
    Throws:
    SQLException - if a database access error occurs
  - getDriverMajorVersion
```
int getDriverMajorVersion()
```
    Retrieves this JDBC driver's major version number.
    Returns:
    JDBC driver major version
  - getDriverMinorVersion
```
int getDriverMinorVersion()
```
    Retrieves this JDBC driver's minor version number.
    Returns:
    JDBC driver minor version number
  - usesLocalFiles
```
boolean usesLocalFiles()                throwsSQLException
```
    Retrieves whether this database stores tables in a local file.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - usesLocalFilePerTable
```
boolean usesLocalFilePerTable()                       throwsSQLException
```
    Retrieves whether this database uses a file for each table.
    Returns:
    true if this database uses a local file for each table;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsMixedCaseIdentifiers
```
boolean supportsMixedCaseIdentifiers()                              throwsSQLException
```
    Retrieves whether this database treats mixed case unquoted SQL identifiers as case sensitive and as a result stores them in mixed case.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - storesUpperCaseIdentifiers
```
boolean storesUpperCaseIdentifiers()                            throwsSQLException
```
    Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in upper case.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - storesLowerCaseIdentifiers
```
boolean storesLowerCaseIdentifiers()                            throwsSQLException
```
    Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in lower case.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - storesMixedCaseIdentifiers
```
boolean storesMixedCaseIdentifiers()                            throwsSQLException
```
    Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in mixed case.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsMixedCaseQuotedIdentifiers
```
boolean supportsMixedCaseQuotedIdentifiers()                                    throwsSQLException
```
    Retrieves whether this database treats mixed case quoted SQL identifiers as case sensitive and as a result stores them in mixed case.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - storesUpperCaseQuotedIdentifiers
```
boolean storesUpperCaseQuotedIdentifiers()                                  throwsSQLException
```
    Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in upper case.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - storesLowerCaseQuotedIdentifiers
```
boolean storesLowerCaseQuotedIdentifiers()                                  throwsSQLException
```
    Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in lower case.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - storesMixedCaseQuotedIdentifiers
```
boolean storesMixedCaseQuotedIdentifiers()                                  throwsSQLException
```
    Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in mixed case.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - getIdentifierQuoteString
```
String getIdentifierQuoteString()                         throwsSQLException
```
    Retrieves the string used to quote SQL identifiers. This method returns a space " " if identifier quoting is not supported.
    Returns:
    the quoting string or a space if quoting is not supported
    Throws:
    SQLException - if a database access error occurs
  - getSQLKeywords
```
String getSQLKeywords()               throwsSQLException
```
    Retrieves a comma-separated list of all of this database's SQL keywords that are NOT also SQL:2003 keywords.
    Returns:
    the list of this database's keywords that are not also SQL:2003 keywords
    Throws:
    SQLException - if a database access error occurs
  - getNumericFunctions
```
String getNumericFunctions()                    throwsSQLException
```
    Retrieves a comma-separated list of math functions available with this database. These are the Open /Open CLI math function names used in the JDBC function escape clause.
    Returns:
    the list of math functions supported by this database
    Throws:
    SQLException - if a database access error occurs
  - getStringFunctions
```
String getStringFunctions()                   throwsSQLException
```
    Retrieves a comma-separated list of string functions available with this database. These are the Open Group CLI string function names used in the JDBC function escape clause.
    Returns:
    the list of string functions supported by this database
    Throws:
    SQLException - if a database access error occurs
  - getSystemFunctions
```
String getSystemFunctions()                   throwsSQLException
```
    Retrieves a comma-separated list of system functions available with this database. These are the Open Group CLI system function names used in the JDBC function escape clause.
    Returns:
    a list of system functions supported by this database
    Throws:
    SQLException - if a database access error occurs
  - getTimeDateFunctions
```
String getTimeDateFunctions()                     throwsSQLException
```
    Retrieves a comma-separated list of the time and date functions available with this database.
    Returns:
    the list of time and date functions supported by this database
    Throws:
    SQLException - if a database access error occurs
  - getSearchStringEscape
```
String getSearchStringEscape()                      throwsSQLException
```
    Retrieves the string that can be used to escape wildcard characters. This is the string that can be used to escape '_' or '%' in the catalog search parameters that are a pattern (and therefore use one of the wildcard characters).
    The '_' character represents any single character; the '%' character represents any sequence of zero or more characters.
    Returns:
    the string used to escape wildcard characters
    Throws:
    SQLException - if a database access error occurs
  - getExtraNameCharacters
```
String getExtraNameCharacters()                       throwsSQLException
```
    Retrieves all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).
    Returns:
    the string containing the extra characters
    Throws:
    SQLException - if a database access error occurs
  - supportsAlterTableWithAddColumn
```
boolean supportsAlterTableWithAddColumn()                                 throwsSQLException
```
    Retrieves whether this database supportsALTER TABLE with add column.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsAlterTableWithDropColumn
```
boolean supportsAlterTableWithDropColumn()                                  throwsSQLException
```
    Retrieves whether this database supportsALTER TABLE with drop column.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsColumnAliasing
```
boolean supportsColumnAliasing()                        throwsSQLException
```
    Retrieves whether this database supports column aliasing.
    If so, the SQL AS clause can be used to provide names for computed columns or to provide alias names for columns as required.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - nullPlusNonNullIsNull
```
boolean nullPlusNonNullIsNull()                       throwsSQLException
```
    Retrieves whether this database supports concatenations betweenNULL and non-NULL values beingNULL.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsConvert
```
boolean supportsConvert()                 throwsSQLException
```
    Retrieves whether this database supports the JDBC scalar functionCONVERT for the conversion of one JDBC type to another. The JDBC types are the generic SQL data types defined injava.sql.Types.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsConvert
```
boolean supportsConvert(int fromType,                        int toType)                 throwsSQLException
```
    Retrieves whether this database supports the JDBC scalar functionCONVERT for conversions between the JDBC typesfromType andtoType. The JDBC types are the generic SQL data types defined injava.sql.Types.
    Parameters:
    fromType - the type to convert from; one of the type codes from the classjava.sql.Types
    toType - the type to convert to; one of the type codes from the classjava.sql.Types
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    See Also:
    Types
  - supportsTableCorrelationNames
```
boolean supportsTableCorrelationNames()                               throwsSQLException
```
    Retrieves whether this database supports table correlation names.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsDifferentTableCorrelationNames
```
boolean supportsDifferentTableCorrelationNames()                                        throwsSQLException
```
    Retrieves whether, when table correlation names are supported, they are restricted to being different from the names of the tables.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsExpressionsInOrderBy
```
boolean supportsExpressionsInOrderBy()                              throwsSQLException
```
    Retrieves whether this database supports expressions inORDER BY lists.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsOrderByUnrelated
```
boolean supportsOrderByUnrelated()                          throwsSQLException
```
    Retrieves whether this database supports using a column that is not in theSELECT statement in anORDER BY clause.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsGroupBy
```
boolean supportsGroupBy()                 throwsSQLException
```
    Retrieves whether this database supports some form ofGROUP BY clause.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsGroupByUnrelated
```
boolean supportsGroupByUnrelated()                          throwsSQLException
```
    Retrieves whether this database supports using a column that is not in theSELECT statement in aGROUP BY clause.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsGroupByBeyondSelect
```
boolean supportsGroupByBeyondSelect()                             throwsSQLException
```
    Retrieves whether this database supports using columns not included in theSELECT statement in aGROUP BY clause provided that all of the columns in theSELECT statement are included in theGROUP BY clause.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsLikeEscapeClause
```
boolean supportsLikeEscapeClause()                          throwsSQLException
```
    Retrieves whether this database supports specifying aLIKE escape clause.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsMultipleResultSets
```
boolean supportsMultipleResultSets()                            throwsSQLException
```
    Retrieves whether this database supports getting multipleResultSet objects from a single call to the methodexecute.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsMultipleTransactions
```
boolean supportsMultipleTransactions()                              throwsSQLException
```
    Retrieves whether this database allows having multiple transactions open at once (on different connections).
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsNonNullableColumns
```
boolean supportsNonNullableColumns()                            throwsSQLException
```
    Retrieves whether columns in this database may be defined as non-nullable.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsMinimumSQLGrammar
```
boolean supportsMinimumSQLGrammar()                           throwsSQLException
```
    Retrieves whether this database supports the ODBC Minimum SQL grammar.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsCoreSQLGrammar
```
boolean supportsCoreSQLGrammar()                        throwsSQLException
```
    Retrieves whether this database supports the ODBC Core SQL grammar.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsExtendedSQLGrammar
```
boolean supportsExtendedSQLGrammar()                            throwsSQLException
```
    Retrieves whether this database supports the ODBC Extended SQL grammar.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsANSI92EntryLevelSQL
```
boolean supportsANSI92EntryLevelSQL()                             throwsSQLException
```
    Retrieves whether this database supports the ANSI92 entry level SQL grammar.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsANSI92IntermediateSQL
```
boolean supportsANSI92IntermediateSQL()                               throwsSQLException
```
    Retrieves whether this database supports the ANSI92 intermediate SQL grammar supported.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsANSI92FullSQL
```
boolean supportsANSI92FullSQL()                       throwsSQLException
```
    Retrieves whether this database supports the ANSI92 full SQL grammar supported.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsIntegrityEnhancementFacility
```
boolean supportsIntegrityEnhancementFacility()                                      throwsSQLException
```
    Retrieves whether this database supports the SQL Integrity Enhancement Facility.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsOuterJoins
```
boolean supportsOuterJoins()                    throwsSQLException
```
    Retrieves whether this database supports some form of outer join.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsFullOuterJoins
```
boolean supportsFullOuterJoins()                        throwsSQLException
```
    Retrieves whether this database supports full nested outer joins.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsLimitedOuterJoins
```
boolean supportsLimitedOuterJoins()                           throwsSQLException
```
    Retrieves whether this database provides limited support for outer joins. (This will betrue if the methodsupportsFullOuterJoins returnstrue).
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - getSchemaTerm
```
String getSchemaTerm()              throwsSQLException
```
    Retrieves the database vendor's preferred term for "schema".
    Returns:
    the vendor term for "schema"
    Throws:
    SQLException - if a database access error occurs
  - getProcedureTerm
```
String getProcedureTerm()                 throwsSQLException
```
    Retrieves the database vendor's preferred term for "procedure".
    Returns:
    the vendor term for "procedure"
    Throws:
    SQLException - if a database access error occurs
  - getCatalogTerm
```
String getCatalogTerm()               throwsSQLException
```
    Retrieves the database vendor's preferred term for "catalog".
    Returns:
    the vendor term for "catalog"
    Throws:
    SQLException - if a database access error occurs
  - isCatalogAtStart
```
boolean isCatalogAtStart()                  throwsSQLException
```
    Retrieves whether a catalog appears at the start of a fully qualified table name. If not, the catalog appears at the end.
    Returns:
    true if the catalog name appears at the beginning of a fully qualified table name;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - getCatalogSeparator
```
String getCatalogSeparator()                    throwsSQLException
```
    Retrieves theString that this database uses as the separator between a catalog and table name.
    Returns:
    the separator string
    Throws:
    SQLException - if a database access error occurs
  - supportsSchemasInDataManipulation
```
boolean supportsSchemasInDataManipulation()                                   throwsSQLException
```
    Retrieves whether a schema name can be used in a data manipulation statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSchemasInProcedureCalls
```
boolean supportsSchemasInProcedureCalls()                                 throwsSQLException
```
    Retrieves whether a schema name can be used in a procedure call statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSchemasInTableDefinitions
```
boolean supportsSchemasInTableDefinitions()                                   throwsSQLException
```
    Retrieves whether a schema name can be used in a table definition statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSchemasInIndexDefinitions
```
boolean supportsSchemasInIndexDefinitions()                                   throwsSQLException
```
    Retrieves whether a schema name can be used in an index definition statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSchemasInPrivilegeDefinitions
```
boolean supportsSchemasInPrivilegeDefinitions()                                       throwsSQLException
```
    Retrieves whether a schema name can be used in a privilege definition statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsCatalogsInDataManipulation
```
boolean supportsCatalogsInDataManipulation()                                    throwsSQLException
```
    Retrieves whether a catalog name can be used in a data manipulation statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsCatalogsInProcedureCalls
```
boolean supportsCatalogsInProcedureCalls()                                  throwsSQLException
```
    Retrieves whether a catalog name can be used in a procedure call statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsCatalogsInTableDefinitions
```
boolean supportsCatalogsInTableDefinitions()                                    throwsSQLException
```
    Retrieves whether a catalog name can be used in a table definition statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsCatalogsInIndexDefinitions
```
boolean supportsCatalogsInIndexDefinitions()                                    throwsSQLException
```
    Retrieves whether a catalog name can be used in an index definition statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsCatalogsInPrivilegeDefinitions
```
boolean supportsCatalogsInPrivilegeDefinitions()                                        throwsSQLException
```
    Retrieves whether a catalog name can be used in a privilege definition statement.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsPositionedDelete
```
boolean supportsPositionedDelete()                          throwsSQLException
```
    Retrieves whether this database supports positionedDELETE statements.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsPositionedUpdate
```
boolean supportsPositionedUpdate()                          throwsSQLException
```
    Retrieves whether this database supports positionedUPDATE statements.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSelectForUpdate
```
boolean supportsSelectForUpdate()                         throwsSQLException
```
    Retrieves whether this database supportsSELECT FOR UPDATE statements.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsStoredProcedures
```
boolean supportsStoredProcedures()                          throwsSQLException
```
    Retrieves whether this database supports stored procedure calls that use the stored procedure escape syntax.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSubqueriesInComparisons
```
boolean supportsSubqueriesInComparisons()                                 throwsSQLException
```
    Retrieves whether this database supports subqueries in comparison expressions.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSubqueriesInExists
```
boolean supportsSubqueriesInExists()                            throwsSQLException
```
    Retrieves whether this database supports subqueries inEXISTS expressions.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSubqueriesInIns
```
boolean supportsSubqueriesInIns()                         throwsSQLException
```
    Retrieves whether this database supports subqueries inIN expressions.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsSubqueriesInQuantifieds
```
boolean supportsSubqueriesInQuantifieds()                                 throwsSQLException
```
    Retrieves whether this database supports subqueries in quantified expressions.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsCorrelatedSubqueries
```
boolean supportsCorrelatedSubqueries()                              throwsSQLException
```
    Retrieves whether this database supports correlated subqueries.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsUnion
```
boolean supportsUnion()               throwsSQLException
```
    Retrieves whether this database supports SQLUNION.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsUnionAll
```
boolean supportsUnionAll()                  throwsSQLException
```
    Retrieves whether this database supports SQLUNION ALL.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsOpenCursorsAcrossCommit
```
boolean supportsOpenCursorsAcrossCommit()                                 throwsSQLException
```
    Retrieves whether this database supports keeping cursors open across commits.
    Returns:
    true if cursors always remain open;false if they might not remain open
    Throws:
    SQLException - if a database access error occurs
  - supportsOpenCursorsAcrossRollback
```
boolean supportsOpenCursorsAcrossRollback()                                   throwsSQLException
```
    Retrieves whether this database supports keeping cursors open across rollbacks.
    Returns:
    true if cursors always remain open;false if they might not remain open
    Throws:
    SQLException - if a database access error occurs
  - supportsOpenStatementsAcrossCommit
```
boolean supportsOpenStatementsAcrossCommit()                                    throwsSQLException
```
    Retrieves whether this database supports keeping statements open across commits.
    Returns:
    true if statements always remain open;false if they might not remain open
    Throws:
    SQLException - if a database access error occurs
  - supportsOpenStatementsAcrossRollback
```
boolean supportsOpenStatementsAcrossRollback()                                      throwsSQLException
```
    Retrieves whether this database supports keeping statements open across rollbacks.
    Returns:
    true if statements always remain open;false if they might not remain open
    Throws:
    SQLException - if a database access error occurs
  - getMaxBinaryLiteralLength
```
int getMaxBinaryLiteralLength()                       throwsSQLException
```
    Retrieves the maximum number of hex characters this database allows in an inline binary literal.
    Returns:
    max the maximum length (in hex characters) for a binary literal; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxCharLiteralLength
```
int getMaxCharLiteralLength()                     throwsSQLException
```
    Retrieves the maximum number of characters this database allows for a character literal.
    Returns:
    the maximum number of characters allowed for a character literal; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxColumnNameLength
```
int getMaxColumnNameLength()                    throwsSQLException
```
    Retrieves the maximum number of characters this database allows for a column name.
    Returns:
    the maximum number of characters allowed for a column name; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxColumnsInGroupBy
```
int getMaxColumnsInGroupBy()                    throwsSQLException
```
    Retrieves the maximum number of columns this database allows in aGROUP BY clause.
    Returns:
    the maximum number of columns allowed; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxColumnsInIndex
```
int getMaxColumnsInIndex()                  throwsSQLException
```
    Retrieves the maximum number of columns this database allows in an index.
    Returns:
    the maximum number of columns allowed; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxColumnsInOrderBy
```
int getMaxColumnsInOrderBy()                    throwsSQLException
```
    Retrieves the maximum number of columns this database allows in anORDER BY clause.
    Returns:
    the maximum number of columns allowed; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxColumnsInSelect
```
int getMaxColumnsInSelect()                   throwsSQLException
```
    Retrieves the maximum number of columns this database allows in aSELECT list.
    Returns:
    the maximum number of columns allowed; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxColumnsInTable
```
int getMaxColumnsInTable()                  throwsSQLException
```
    Retrieves the maximum number of columns this database allows in a table.
    Returns:
    the maximum number of columns allowed; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxConnections
```
int getMaxConnections()               throwsSQLException
```
    Retrieves the maximum number of concurrent connections to this database that are possible.
    Returns:
    the maximum number of active connections possible at one time; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxCursorNameLength
```
int getMaxCursorNameLength()                    throwsSQLException
```
    Retrieves the maximum number of characters that this database allows in a cursor name.
    Returns:
    the maximum number of characters allowed in a cursor name; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxIndexLength
```
int getMaxIndexLength()               throwsSQLException
```
    Retrieves the maximum number of bytes this database allows for an index, including all of the parts of the index.
    Returns:
    the maximum number of bytes allowed; this limit includes the composite of all the constituent parts of the index; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxSchemaNameLength
```
int getMaxSchemaNameLength()                    throwsSQLException
```
    Retrieves the maximum number of characters that this database allows in a schema name.
    Returns:
    the maximum number of characters allowed in a schema name; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxProcedureNameLength
```
int getMaxProcedureNameLength()                       throwsSQLException
```
    Retrieves the maximum number of characters that this database allows in a procedure name.
    Returns:
    the maximum number of characters allowed in a procedure name; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxCatalogNameLength
```
int getMaxCatalogNameLength()                     throwsSQLException
```
    Retrieves the maximum number of characters that this database allows in a catalog name.
    Returns:
    the maximum number of characters allowed in a catalog name; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxRowSize
```
int getMaxRowSize()           throwsSQLException
```
    Retrieves the maximum number of bytes this database allows in a single row.
    Returns:
    the maximum number of bytes allowed for a row; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - doesMaxRowSizeIncludeBlobs
```
boolean doesMaxRowSizeIncludeBlobs()                            throwsSQLException
```
    Retrieves whether the return value for the methodgetMaxRowSize includes the SQL data typesLONGVARCHAR andLONGVARBINARY.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - getMaxStatementLength
```
int getMaxStatementLength()                   throwsSQLException
```
    Retrieves the maximum number of characters this database allows in an SQL statement.
    Returns:
    the maximum number of characters allowed for an SQL statement; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxStatements
```
int getMaxStatements()              throwsSQLException
```
    Retrieves the maximum number of active statements to this database that can be open at the same time.
    Returns:
    the maximum number of statements that can be open at one time; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxTableNameLength
```
int getMaxTableNameLength()                   throwsSQLException
```
    Retrieves the maximum number of characters this database allows in a table name.
    Returns:
    the maximum number of characters allowed for a table name; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxTablesInSelect
```
int getMaxTablesInSelect()                  throwsSQLException
```
    Retrieves the maximum number of tables this database allows in aSELECT statement.
    Returns:
    the maximum number of tables allowed in aSELECT statement; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getMaxUserNameLength
```
int getMaxUserNameLength()                  throwsSQLException
```
    Retrieves the maximum number of characters this database allows in a user name.
    Returns:
    the maximum number of characters allowed for a user name; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
  - getDefaultTransactionIsolation
```
int getDefaultTransactionIsolation()                            throwsSQLException
```
    Retrieves this database's default transaction isolation level. The possible values are defined injava.sql.Connection.
    Returns:
    the default isolation level
    Throws:
    SQLException - if a database access error occurs
    See Also:
    Connection
  - supportsTransactions
```
boolean supportsTransactions()                      throwsSQLException
```
    Retrieves whether this database supports transactions. If not, invoking the methodcommit is a noop, and the isolation level isTRANSACTION_NONE.
    Returns:
    true if transactions are supported;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsTransactionIsolationLevel
```
boolean supportsTransactionIsolationLevel(int level)                                   throwsSQLException
```
    Retrieves whether this database supports the given transaction isolation level.
    Parameters:
    level - one of the transaction isolation levels defined injava.sql.Connection
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    See Also:
    Connection
  - supportsDataDefinitionAndDataManipulationTransactions
```
boolean supportsDataDefinitionAndDataManipulationTransactions()                                                       throwsSQLException
```
    Retrieves whether this database supports both data definition and data manipulation statements within a transaction.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - supportsDataManipulationTransactionsOnly
```
boolean supportsDataManipulationTransactionsOnly()                                          throwsSQLException
```
    Retrieves whether this database supports only data manipulation statements within a transaction.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - dataDefinitionCausesTransactionCommit
```
boolean dataDefinitionCausesTransactionCommit()                                       throwsSQLException
```
    Retrieves whether a data definition statement within a transaction forces the transaction to commit.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - dataDefinitionIgnoredInTransactions
```
boolean dataDefinitionIgnoredInTransactions()                                     throwsSQLException
```
    Retrieves whether this database ignores a data definition statement within a transaction.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
  - getProcedures
```
ResultSet getProcedures(String catalog,String schemaPattern,String procedureNamePattern)                 throwsSQLException
```
    Retrieves a description of the stored procedures available in the given catalog.
    Only procedure descriptions matching the schema and procedure name criteria are returned. They are ordered byPROCEDURE_CAT,PROCEDURE_SCHEM,PROCEDURE_NAME andSPECIFIC_ NAME.
    Each procedure description has the following columns:
    PROCEDURE_CAT String=> procedure catalog (may benull)
    PROCEDURE_SCHEM String=> procedure schema (may benull)
    PROCEDURE_NAME String=> procedure name
    reserved for future use
    reserved for future use
    reserved for future use
    REMARKS String=> explanatory comment on the procedure
    PROCEDURE_TYPE short=> kind of procedure:
    procedureResultUnknown - Cannot determine if a return value will be returned
    procedureNoResult - Does not return a return value
    procedureReturnsResult - Returns a return value
    SPECIFIC_NAME String=> The name which uniquely identifies this procedure within its schema.
    A user may not have permissions to execute any of the procedures that are returned bygetProcedures
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    procedureNamePattern - a procedure name pattern; must match the procedure name as it is stored in the database
    Returns:
    ResultSet - each row is a procedure description
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getSearchStringEscape()
  - getProcedureColumns
```
ResultSet getProcedureColumns(String catalog,String schemaPattern,String procedureNamePattern,String columnNamePattern)                       throwsSQLException
```
    Retrieves a description of the given catalog's stored procedure parameter and result columns.
    Only descriptions matching the schema, procedure and parameter name criteria are returned. They are ordered by PROCEDURE_CAT, PROCEDURE_SCHEM, PROCEDURE_NAME and SPECIFIC_NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.
    Each row in theResultSet is a parameter description or column description with the following fields:
    PROCEDURE_CAT String=> procedure catalog (may benull)
    PROCEDURE_SCHEM String=> procedure schema (may benull)
    PROCEDURE_NAME String=> procedure name
    COLUMN_NAME String=> column/parameter name
    COLUMN_TYPE Short=> kind of column/parameter:
    procedureColumnUnknown - nobody knows
    procedureColumnIn - IN parameter
    procedureColumnInOut - INOUT parameter
    procedureColumnOut - OUT parameter
    procedureColumnReturn - procedure return value
    procedureColumnResult - result column inResultSet
    DATA_TYPE int=> SQL type from java.sql.Types
    TYPE_NAME String=> SQL type name, for a UDT type the type name is fully qualified
    PRECISION int=> precision
    LENGTH int=> length in bytes of data
    SCALE short=> scale - null is returned for data types where SCALE is not applicable.
    RADIX short=> radix
    NULLABLE short=> can it contain NULL.
    procedureNoNulls - does not allow NULL values
    procedureNullable - allows NULL values
    procedureNullableUnknown - nullability unknown
    REMARKS String=> comment describing parameter/column
    COLUMN_DEF String=> default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may benull)
    The string NULL (not enclosed in quotes) - if NULL was specified as the default value
    TRUNCATE (not enclosed in quotes) - if the specified default value cannot be represented without truncation
    NULL - if a default value was not specified
    SQL_DATA_TYPE int=> reserved for future use
    SQL_DATETIME_SUB int=> reserved for future use
    CHAR_OCTET_LENGTH int=> the maximum length of binary and character based columns. For any other datatype the returned value is a NULL
    ORDINAL_POSITION int=> the ordinal position, starting from 1, for the input and output parameters for a procedure. A value of 0is returned if this row describes the procedure's return value. For result set columns, it is theordinal position of the column in the result set starting from 1. If there aremultiple result sets, the column ordinal positions are implementation defined.
    IS_NULLABLE String=> ISO rules are used to determine the nullability for a column.
    YES --- if the column can include NULLs
    NO --- if the column cannot include NULLs
    empty string --- if the nullability for the column is unknown
    SPECIFIC_NAME String=> the name which uniquely identifies this procedure within its schema.
    Note: Some databases may not return the column descriptions for a procedure.
    The PRECISION column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    procedureNamePattern - a procedure name pattern; must match the procedure name as it is stored in the database
    columnNamePattern - a column name pattern; must match the column name as it is stored in the database
    Returns:
    ResultSet - each row describes a stored procedure parameter or column
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getSearchStringEscape()
  - getTables
```
ResultSet getTables(String catalog,String schemaPattern,String tableNamePattern,String[] types)             throwsSQLException
```
    Retrieves a description of the tables available in the given catalog. Only table descriptions matching the catalog, schema, table name and type criteria are returned. They are ordered byTABLE_TYPE,TABLE_CAT,TABLE_SCHEM andTABLE_NAME.
    Each table description has the following columns:
    TABLE_CAT String=> table catalog (may benull)
    TABLE_SCHEM String=> table schema (may benull)
    TABLE_NAME String=> table name
    TABLE_TYPE String=> table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
    REMARKS String=> explanatory comment on the table (may benull)
    TYPE_CAT String=> the types catalog (may benull)
    TYPE_SCHEM String=> the types schema (may benull)
    TYPE_NAME String=> type name (may benull)
    SELF_REFERENCING_COL_NAME String=> name of the designated "identifier" column of a typed table (may benull)
    REF_GENERATION String=> specifies how values in SELF_REFERENCING_COL_NAME are created. Values are "SYSTEM", "USER", "DERIVED". (may benull)
    Note: Some databases may not return information for all tables.
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    tableNamePattern - a table name pattern; must match the table name as it is stored in the database
    types - a list of table types, which must be from the list of table types returned fromgetTableTypes(),to include;null returns all types
    Returns:
    ResultSet - each row is a table description
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getSearchStringEscape()
  - getSchemas
```
ResultSet getSchemas()              throwsSQLException
```
    Retrieves the schema names available in this database. The results are ordered byTABLE_CATALOG andTABLE_SCHEM.
    The schema columns are:
    TABLE_SCHEM String=> schema name
    TABLE_CATALOG String=> catalog name (may benull)
    Returns:
    aResultSet object in which each row is a schema description
    Throws:
    SQLException - if a database access error occurs
  - getCatalogs
```
ResultSet getCatalogs()               throwsSQLException
```
    Retrieves the catalog names available in this database. The results are ordered by catalog name.
    The catalog column is:
    TABLE_CAT String=> catalog name
    Returns:
    aResultSet object in which each row has a singleString column that is a catalog name
    Throws:
    SQLException - if a database access error occurs
  - getTableTypes
```
ResultSet getTableTypes()                 throwsSQLException
```
    Retrieves the table types available in this database. The results are ordered by table type.
    The table type is:
    TABLE_TYPE String=> table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
    Returns:
    aResultSet object in which each row has a singleString column that is a table type
    Throws:
    SQLException - if a database access error occurs
  - getColumns
```
ResultSet getColumns(String catalog,String schemaPattern,String tableNamePattern,String columnNamePattern)              throwsSQLException
```
    Retrieves a description of table columns available in the specified catalog.
    Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered byTABLE_CAT,TABLE_SCHEM,TABLE_NAME, andORDINAL_POSITION.
    Each column description has the following columns:
    TABLE_CAT String=> table catalog (may benull)
    TABLE_SCHEM String=> table schema (may benull)
    TABLE_NAME String=> table name
    COLUMN_NAME String=> column name
    DATA_TYPE int=> SQL type from java.sql.Types
    TYPE_NAME String=> Data source dependent type name, for a UDT the type name is fully qualified
    COLUMN_SIZE int=> column size.
    BUFFER_LENGTH is not used.
    DECIMAL_DIGITS int=> the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable.
    NUM_PREC_RADIX int=> Radix (typically either 10 or 2)
    NULLABLE int=> is NULL allowed.
    columnNoNulls - might not allowNULL values
    columnNullable - definitely allowsNULL values
    columnNullableUnknown - nullability unknown
    REMARKS String=> comment describing column (may benull)
    COLUMN_DEF String=> default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may benull)
    SQL_DATA_TYPE int=> unused
    SQL_DATETIME_SUB int=> unused
    CHAR_OCTET_LENGTH int=> for char types the maximum number of bytes in the column
    ORDINAL_POSITION int=> index of column in table (starting at 1)
    IS_NULLABLE String=> ISO rules are used to determine the nullability for a column.
    YES --- if the column can include NULLs
    NO --- if the column cannot include NULLs
    empty string --- if the nullability for the column is unknown
    SCOPE_CATALOG String=> catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
    SCOPE_SCHEMA String=> schema of table that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
    SCOPE_TABLE String=> table name that this the scope of a reference attribute (null if the DATA_TYPE isn't REF)
    SOURCE_DATA_TYPE short=> source type of a distinct type or user-generated Ref type, SQL type from java.sql.Types (null if DATA_TYPE isn't DISTINCT or user-generated REF)
    IS_AUTOINCREMENT String=> Indicates whether this column is auto incremented
    YES --- if the column is auto incremented
    NO --- if the column is not auto incremented
    empty string --- if it cannot be determined whether the column is auto incremented
    IS_GENERATEDCOLUMN String=> Indicates whether this is a generated column
    YES --- if this a generated column
    NO --- if this not a generated column
    empty string --- if it cannot be determined whether this is a generated column
    The COLUMN_SIZE column specifies the column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    tableNamePattern - a table name pattern; must match the table name as it is stored in the database
    columnNamePattern - a column name pattern; must match the column name as it is stored in the database
    Returns:
    ResultSet - each row is a column description
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getSearchStringEscape()
  - getColumnPrivileges
```
ResultSet getColumnPrivileges(String catalog,String schema,String table,String columnNamePattern)                       throwsSQLException
```
    Retrieves a description of the access rights for a table's columns.
    Only privileges matching the column name criteria are returned. They are ordered by COLUMN_NAME and PRIVILEGE.
    Each privilege description has the following columns:
    TABLE_CAT String=> table catalog (may benull)
    TABLE_SCHEM String=> table schema (may benull)
    TABLE_NAME String=> table name
    COLUMN_NAME String=> column name
    GRANTOR String=> grantor of access (may benull)
    GRANTEE String=> grantee of access
    PRIVILEGE String=> name of access (SELECT, INSERT, UPDATE, REFERENCES, ...)
    IS_GRANTABLE String=> "YES" if grantee is permitted to grant to others; "NO" if not;null if unknown
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    table - a table name; must match the table name as it is stored in the database
    columnNamePattern - a column name pattern; must match the column name as it is stored in the database
    Returns:
    ResultSet - each row is a column privilege description
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getSearchStringEscape()
  - getTablePrivileges
```
ResultSet getTablePrivileges(String catalog,String schemaPattern,String tableNamePattern)                      throwsSQLException
```
    Retrieves a description of the access rights for each table available in a catalog. Note that a table privilege applies to one or more columns in the table. It would be wrong to assume that this privilege applies to all columns (this may be true for some systems but is not true for all.)
    Only privileges matching the schema and table name criteria are returned. They are ordered byTABLE_CAT,TABLE_SCHEM,TABLE_NAME, andPRIVILEGE.
    Each privilege description has the following columns:
    TABLE_CAT String=> table catalog (may benull)
    TABLE_SCHEM String=> table schema (may benull)
    TABLE_NAME String=> table name
    GRANTOR String=> grantor of access (may benull)
    GRANTEE String=> grantee of access
    PRIVILEGE String=> name of access (SELECT, INSERT, UPDATE, REFERENCES, ...)
    IS_GRANTABLE String=> "YES" if grantee is permitted to grant to others; "NO" if not;null if unknown
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    tableNamePattern - a table name pattern; must match the table name as it is stored in the database
    Returns:
    ResultSet - each row is a table privilege description
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getSearchStringEscape()
  - getBestRowIdentifier
```
ResultSet getBestRowIdentifier(String catalog,String schema,String table,                               int scope,                               boolean nullable)                        throwsSQLException
```
    Retrieves a description of a table's optimal set of columns that uniquely identifies a row. They are ordered by SCOPE.
    Each column description has the following columns:
    SCOPE short=> actual scope of result
    bestRowTemporary - very temporary, while using row
    bestRowTransaction - valid for remainder of current transaction
    bestRowSession - valid for remainder of current session
    COLUMN_NAME String=> column name
    DATA_TYPE int=> SQL data type from java.sql.Types
    TYPE_NAME String=> Data source dependent type name, for a UDT the type name is fully qualified
    COLUMN_SIZE int=> precision
    BUFFER_LENGTH int=> not used
    DECIMAL_DIGITS short=> scale - Null is returned for data types where DECIMAL_DIGITS is not applicable.
    PSEUDO_COLUMN short=> is this a pseudo column like an Oracle ROWID
    bestRowUnknown - may or may not be pseudo column
    bestRowNotPseudo - is NOT a pseudo column
    bestRowPseudo - is a pseudo column
    The COLUMN_SIZE column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    table - a table name; must match the table name as it is stored in the database
    scope - the scope of interest; use same values as SCOPE
    nullable - include columns that are nullable.
    Returns:
    ResultSet - each row is a column description
    Throws:
    SQLException - if a database access error occurs
  - getVersionColumns
```
ResultSet getVersionColumns(String catalog,String schema,String table)                     throwsSQLException
```
    Retrieves a description of a table's columns that are automatically updated when any value in a row is updated. They are unordered.
    Each column description has the following columns:
    SCOPE short=> is not used
    COLUMN_NAME String=> column name
    DATA_TYPE int=> SQL data type fromjava.sql.Types
    TYPE_NAME String=> Data source-dependent type name
    COLUMN_SIZE int=> precision
    BUFFER_LENGTH int=> length of column value in bytes
    DECIMAL_DIGITS short=> scale - Null is returned for data types where DECIMAL_DIGITS is not applicable.
    PSEUDO_COLUMN short=> whether this is pseudo column like an Oracle ROWID
    versionColumnUnknown - may or may not be pseudo column
    versionColumnNotPseudo - is NOT a pseudo column
    versionColumnPseudo - is a pseudo column
    The COLUMN_SIZE column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    table - a table name; must match the table name as it is stored in the database
    Returns:
    aResultSet object in which each row is a column description
    Throws:
    SQLException - if a database access error occurs
  - getPrimaryKeys
```
ResultSet getPrimaryKeys(String catalog,String schema,String table)                  throwsSQLException
```
    Retrieves a description of the given table's primary key columns. They are ordered by COLUMN_NAME.
    Each primary key column description has the following columns:
    TABLE_CAT String=> table catalog (may benull)
    TABLE_SCHEM String=> table schema (may benull)
    TABLE_NAME String=> table name
    COLUMN_NAME String=> column name
    KEY_SEQ short=> sequence number within primary key( a value of 1 represents the first column of the primary key, a value of 2 would represent the second column within the primary key).
    PK_NAME String=> primary key name (may benull)
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    table - a table name; must match the table name as it is stored in the database
    Returns:
    ResultSet - each row is a primary key column description
    Throws:
    SQLException - if a database access error occurs
  - getImportedKeys
```
ResultSet getImportedKeys(String catalog,String schema,String table)                   throwsSQLException
```
    Retrieves a description of the primary key columns that are referenced by the given table's foreign key columns (the primary keys imported by a table). They are ordered by PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.
    Each primary key column description has the following columns:
    PKTABLE_CAT String=> primary key table catalog being imported (may benull)
    PKTABLE_SCHEM String=> primary key table schema being imported (may benull)
    PKTABLE_NAME String=> primary key table name being imported
    PKCOLUMN_NAME String=> primary key column name being imported
    FKTABLE_CAT String=> foreign key table catalog (may benull)
    FKTABLE_SCHEM String=> foreign key table schema (may benull)
    FKTABLE_NAME String=> foreign key table name
    FKCOLUMN_NAME String=> foreign key column name
    KEY_SEQ short=> sequence number within a foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key).
    UPDATE_RULE short=> What happens to a foreign key when the primary key is updated:
    importedNoAction - do not allow update of primary key if it has been imported
    importedKeyCascade - change imported key to agree with primary key update
    importedKeySetNull - change imported key toNULL if its primary key has been updated
    importedKeySetDefault - change imported key to default values if its primary key has been updated
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    DELETE_RULE short=> What happens to the foreign key when primary is deleted.
    importedKeyNoAction - do not allow delete of primary key if it has been imported
    importedKeyCascade - delete rows that import a deleted key
    importedKeySetNull - change imported key to NULL if its primary key has been deleted
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    importedKeySetDefault - change imported key to default if its primary key has been deleted
    FK_NAME String=> foreign key name (may benull)
    PK_NAME String=> primary key name (may benull)
    DEFERRABILITY short=> can the evaluation of foreign key constraints be deferred until commit
    importedKeyInitiallyDeferred - see SQL92 for definition
    importedKeyInitiallyImmediate - see SQL92 for definition
    importedKeyNotDeferrable - see SQL92 for definition
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    table - a table name; must match the table name as it is stored in the database
    Returns:
    ResultSet - each row is a primary key column description
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getExportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getExportedKeys
```
ResultSet getExportedKeys(String catalog,String schema,String table)                   throwsSQLException
```
    Retrieves a description of the foreign key columns that reference the given table's primary key columns (the foreign keys exported by a table). They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
    Each foreign key column description has the following columns:
    PKTABLE_CAT String=> primary key table catalog (may benull)
    PKTABLE_SCHEM String=> primary key table schema (may benull)
    PKTABLE_NAME String=> primary key table name
    PKCOLUMN_NAME String=> primary key column name
    FKTABLE_CAT String=> foreign key table catalog (may benull) being exported (may benull)
    FKTABLE_SCHEM String=> foreign key table schema (may benull) being exported (may benull)
    FKTABLE_NAME String=> foreign key table name being exported
    FKCOLUMN_NAME String=> foreign key column name being exported
    KEY_SEQ short=> sequence number within foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key).
    UPDATE_RULE short=> What happens to foreign key when primary is updated:
    importedNoAction - do not allow update of primary key if it has been imported
    importedKeyCascade - change imported key to agree with primary key update
    importedKeySetNull - change imported key toNULL if its primary key has been updated
    importedKeySetDefault - change imported key to default values if its primary key has been updated
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    DELETE_RULE short=> What happens to the foreign key when primary is deleted.
    importedKeyNoAction - do not allow delete of primary key if it has been imported
    importedKeyCascade - delete rows that import a deleted key
    importedKeySetNull - change imported key toNULL if its primary key has been deleted
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    importedKeySetDefault - change imported key to default if its primary key has been deleted
    FK_NAME String=> foreign key name (may benull)
    PK_NAME String=> primary key name (may benull)
    DEFERRABILITY short=> can the evaluation of foreign key constraints be deferred until commit
    importedKeyInitiallyDeferred - see SQL92 for definition
    importedKeyInitiallyImmediate - see SQL92 for definition
    importedKeyNotDeferrable - see SQL92 for definition
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in this database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    table - a table name; must match the table name as it is stored in this database
    Returns:
    aResultSet object in which each row is a foreign key column description
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getImportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getCrossReference
```
ResultSet getCrossReference(String parentCatalog,String parentSchema,String parentTable,String foreignCatalog,String foreignSchema,String foreignTable)                     throwsSQLException
```
    Retrieves a description of the foreign key columns in the given foreign key table that reference the primary key or the columns representing a unique constraint of the parent table (could be the same or a different table). The number of columns returned from the parent table must match the number of columns that make up the foreign key. They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
    Each foreign key column description has the following columns:
    PKTABLE_CAT String=> parent key table catalog (may benull)
    PKTABLE_SCHEM String=> parent key table schema (may benull)
    PKTABLE_NAME String=> parent key table name
    PKCOLUMN_NAME String=> parent key column name
    FKTABLE_CAT String=> foreign key table catalog (may benull) being exported (may benull)
    FKTABLE_SCHEM String=> foreign key table schema (may benull) being exported (may benull)
    FKTABLE_NAME String=> foreign key table name being exported
    FKCOLUMN_NAME String=> foreign key column name being exported
    KEY_SEQ short=> sequence number within foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key).
    UPDATE_RULE short=> What happens to foreign key when parent key is updated:
    importedNoAction - do not allow update of parent key if it has been imported
    importedKeyCascade - change imported key to agree with parent key update
    importedKeySetNull - change imported key toNULL if its parent key has been updated
    importedKeySetDefault - change imported key to default values if its parent key has been updated
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    DELETE_RULE short=> What happens to the foreign key when parent key is deleted.
    importedKeyNoAction - do not allow delete of parent key if it has been imported
    importedKeyCascade - delete rows that import a deleted key
    importedKeySetNull - change imported key toNULL if its primary key has been deleted
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    importedKeySetDefault - change imported key to default if its parent key has been deleted
    FK_NAME String=> foreign key name (may benull)
    PK_NAME String=> parent key name (may benull)
    DEFERRABILITY short=> can the evaluation of foreign key constraints be deferred until commit
    importedKeyInitiallyDeferred - see SQL92 for definition
    importedKeyInitiallyImmediate - see SQL92 for definition
    importedKeyNotDeferrable - see SQL92 for definition
    Parameters:
    parentCatalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means drop catalog name from the selection criteria
    parentSchema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means drop schema name from the selection criteria
    parentTable - the name of the table that exports the key; must match the table name as it is stored in the database
    foreignCatalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means drop catalog name from the selection criteria
    foreignSchema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means drop schema name from the selection criteria
    foreignTable - the name of the table that imports the key; must match the table name as it is stored in the database
    Returns:
    ResultSet - each row is a foreign key column description
    Throws:
    SQLException - if a database access error occurs
    See Also:
    getImportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getTypeInfo
```
ResultSet getTypeInfo()               throwsSQLException
```
    Retrieves a description of all the data types supported by this database. They are ordered by DATA_TYPE and then by how closely the data type maps to the corresponding JDBC SQL type.
    If the database supports SQL distinct types, then getTypeInfo() will return a single row with a TYPE_NAME of DISTINCT and a DATA_TYPE of Types.DISTINCT. If the database supports SQL structured types, then getTypeInfo() will return a single row with a TYPE_NAME of STRUCT and a DATA_TYPE of Types.STRUCT.
    If SQL distinct or structured types are supported, then information on the individual types may be obtained from the getUDTs() method.
    Each type description has the following columns:
    TYPE_NAME String=> Type name
    DATA_TYPE int=> SQL data type from java.sql.Types
    PRECISION int=> maximum precision
    LITERAL_PREFIX String=> prefix used to quote a literal (may benull)
    LITERAL_SUFFIX String=> suffix used to quote a literal (may benull)
    CREATE_PARAMS String=> parameters used in creating the type (may benull)
    NULLABLE short=> can you use NULL for this type.
    typeNoNulls - does not allow NULL values
    typeNullable - allows NULL values
    typeNullableUnknown - nullability unknown
    CASE_SENSITIVE boolean=> is it case sensitive.
    SEARCHABLE short=> can you use "WHERE" based on this type:
    typePredNone - No support
    typePredChar - Only supported with WHERE .. LIKE
    typePredBasic - Supported except for WHERE .. LIKE
    typeSearchable - Supported for all WHERE ..
    UNSIGNED_ATTRIBUTE boolean=> is it unsigned.
    FIXED_PREC_SCALE boolean=> can it be a money value.
    AUTO_INCREMENT boolean=> can it be used for an auto-increment value.
    LOCAL_TYPE_NAME String=> localized version of type name (may benull)
    MINIMUM_SCALE short=> minimum scale supported
    MAXIMUM_SCALE short=> maximum scale supported
    SQL_DATA_TYPE int=> unused
    SQL_DATETIME_SUB int=> unused
    NUM_PREC_RADIX int=> usually 2 or 10
    The PRECISION column represents the maximum column size that the server supports for the given datatype. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Returns:
    aResultSet object in which each row is an SQL type description
    Throws:
    SQLException - if a database access error occurs
  - getIndexInfo
```
ResultSet getIndexInfo(String catalog,String schema,String table,                       boolean unique,                       boolean approximate)                throwsSQLException
```
    Retrieves a description of the given table's indices and statistics. They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.
    Each index column description has the following columns:
    TABLE_CAT String=> table catalog (may benull)
    TABLE_SCHEM String=> table schema (may benull)
    TABLE_NAME String=> table name
    NON_UNIQUE boolean=> Can index values be non-unique. false when TYPE is tableIndexStatistic
    INDEX_QUALIFIER String=> index catalog (may benull);null when TYPE is tableIndexStatistic
    INDEX_NAME String=> index name;null when TYPE is tableIndexStatistic
    TYPE short=> index type:
    tableIndexStatistic - this identifies table statistics that are returned in conjunction with a table's index descriptions
    tableIndexClustered - this is a clustered index
    tableIndexHashed - this is a hashed index
    tableIndexOther - this is some other style of index
    ORDINAL_POSITION short=> column sequence number within index; zero when TYPE is tableIndexStatistic
    COLUMN_NAME String=> column name;null when TYPE is tableIndexStatistic
    ASC_OR_DESC String=> column sort sequence, "A"=> ascending, "D"=> descending, may benull if sort sequence is not supported;null when TYPE is tableIndexStatistic
    CARDINALITY long=> When TYPE is tableIndexStatistic, then this is the number of rows in the table; otherwise, it is the number of unique values in the index.
    PAGES long=> When TYPE is tableIndexStatistic then this is the number of pages used for the table, otherwise it is the number of pages used for the current index.
    FILTER_CONDITION String=> Filter condition, if any. (may benull)
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in this database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schema - a schema name; must match the schema name as it is stored in this database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    table - a table name; must match the table name as it is stored in this database
    unique - when true, return only indices for unique values; when false, return indices regardless of whether unique or not
    approximate - when true, result is allowed to reflect approximate or out of data values; when false, results are requested to be accurate
    Returns:
    ResultSet - each row is an index column description
    Throws:
    SQLException - if a database access error occurs
  - supportsResultSetType
```
boolean supportsResultSetType(int type)                       throwsSQLException
```
    Retrieves whether this database supports the given result set type.
    Parameters:
    type - defined injava.sql.ResultSet
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
    See Also:
    Connection
  - supportsResultSetConcurrency
```
boolean supportsResultSetConcurrency(int type,                                     int concurrency)                              throwsSQLException
```
    Retrieves whether this database supports the given concurrency type in combination with the given result set type.
    Parameters:
    type - defined injava.sql.ResultSet
    concurrency - type defined injava.sql.ResultSet
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
    See Also:
    Connection
  - ownUpdatesAreVisible
```
boolean ownUpdatesAreVisible(int type)                      throwsSQLException
```
    Retrieves whether for the given type ofResultSet object, the result set's own updates are visible.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if updates are visible for the given result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - ownDeletesAreVisible
```
boolean ownDeletesAreVisible(int type)                      throwsSQLException
```
    Retrieves whether a result set's own deletes are visible.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if deletes are visible for the given result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - ownInsertsAreVisible
```
boolean ownInsertsAreVisible(int type)                      throwsSQLException
```
    Retrieves whether a result set's own inserts are visible.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if inserts are visible for the given result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - othersUpdatesAreVisible
```
boolean othersUpdatesAreVisible(int type)                         throwsSQLException
```
    Retrieves whether updates made by others are visible.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if updates made by others are visible for the given result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - othersDeletesAreVisible
```
boolean othersDeletesAreVisible(int type)                         throwsSQLException
```
    Retrieves whether deletes made by others are visible.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if deletes made by others are visible for the given result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - othersInsertsAreVisible
```
boolean othersInsertsAreVisible(int type)                         throwsSQLException
```
    Retrieves whether inserts made by others are visible.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if inserts made by others are visible for the given result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - updatesAreDetected
```
boolean updatesAreDetected(int type)                    throwsSQLException
```
    Retrieves whether or not a visible row update can be detected by calling the methodResultSet.rowUpdated.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if changes are detected by the result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - deletesAreDetected
```
boolean deletesAreDetected(int type)                    throwsSQLException
```
    Retrieves whether or not a visible row delete can be detected by calling the methodResultSet.rowDeleted. If the methoddeletesAreDetected returnsfalse, it means that deleted rows are removed from the result set.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if deletes are detected by the given result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - insertsAreDetected
```
boolean insertsAreDetected(int type)                    throwsSQLException
```
    Retrieves whether or not a visible row insert can be detected by calling the methodResultSet.rowInserted.
    Parameters:
    type - theResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE
    Returns:
    true if changes are detected by the specified result set type;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - supportsBatchUpdates
```
boolean supportsBatchUpdates()                      throwsSQLException
```
    Retrieves whether this database supports batch updates.
    Returns:
    true if this database supports batch updates;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - getUDTs
```
ResultSet getUDTs(String catalog,String schemaPattern,String typeNamePattern,                  int[] types)           throwsSQLException
```
    Retrieves a description of the user-defined types (UDTs) defined in a particular schema. Schema-specific UDTs may have typeJAVA_OBJECT,STRUCT, orDISTINCT.
    Only types matching the catalog, schema, type name and type criteria are returned. They are ordered byDATA_TYPE,TYPE_CAT,TYPE_SCHEM andTYPE_NAME. The type name parameter may be a fully-qualified name. In this case, the catalog and schemaPattern parameters are ignored.
    Each type description has the following columns:
    TYPE_CAT String=> the type's catalog (may benull)
    TYPE_SCHEM String=> type's schema (may benull)
    TYPE_NAME String=> type name
    CLASS_NAME String=> Java class name
    DATA_TYPE int=> type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT
    REMARKS String=> explanatory comment on the type
    BASE_TYPE short=> type code of the source type of a DISTINCT type or the type that implements the user-generated reference type of the SELF_REFERENCING_COLUMN of a structured type as defined in java.sql.Types (null if DATA_TYPE is not DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED)
    Note: If the driver does not support UDTs, an empty result set is returned.
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema pattern name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    typeNamePattern - a type name pattern; must match the type name as it is stored in the database; may be a fully qualified name
    types - a list of user-defined types (JAVA_OBJECT, STRUCT, or DISTINCT) to include;null returns all types
    Returns:
    ResultSet object in which each row describes a UDT
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
    See Also:
    getSearchStringEscape()
  - getConnection
```
Connection getConnection()                  throwsSQLException
```
    Retrieves the connection that produced this metadata object.
    Returns:
    the connection that produced this metadata object
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.2
  - supportsSavepoints
```
boolean supportsSavepoints()                    throwsSQLException
```
    Retrieves whether this database supports savepoints.
    Returns:
    true if savepoints are supported;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - supportsNamedParameters
```
boolean supportsNamedParameters()                         throwsSQLException
```
    Retrieves whether this database supports named parameters to callable statements.
    Returns:
    true if named parameters are supported;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - supportsMultipleOpenResults
```
boolean supportsMultipleOpenResults()                             throwsSQLException
```
    Retrieves whether it is possible to have multipleResultSet objects returned from aCallableStatement object simultaneously.
    Returns:
    true if aCallableStatement object can return multipleResultSet objects simultaneously;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - supportsGetGeneratedKeys
```
boolean supportsGetGeneratedKeys()                          throwsSQLException
```
    Retrieves whether auto-generated keys can be retrieved after a statement has been executed
    Returns:
    true if auto-generated keys can be retrieved after a statement has executed;false otherwise
    Iftrue is returned, the JDBC driver must support the returning of auto-generated keys for at least SQL INSERT statements
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - getSuperTypes
```
ResultSet getSuperTypes(String catalog,String schemaPattern,String typeNamePattern)                 throwsSQLException
```
    Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database. Only the immediate super type/ sub type relationship is modeled.
    Only supertype information for UDTs matching the catalog, schema, and type name is returned. The type name parameter may be a fully-qualified name. When the UDT name supplied is a fully-qualified name, the catalog and schemaPattern parameters are ignored.
    If a UDT does not have a direct super type, it is not listed here. A row of theResultSet object returned by this method describes the designated UDT and a direct supertype. A row has the following columns:
    TYPE_CAT String=> the UDT's catalog (may benull)
    TYPE_SCHEM String=> UDT's schema (may benull)
    TYPE_NAME String=> type name of the UDT
    SUPERTYPE_CAT String=> the direct super type's catalog (may benull)
    SUPERTYPE_SCHEM String=> the direct super type's schema (may benull)
    SUPERTYPE_NAME String=> the direct super type's name
    Note: If the driver does not support type hierarchies, an empty result set is returned.
    Parameters:
    catalog - a catalog name; "" retrieves those without a catalog;null means drop catalog name from the selection criteria
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    typeNamePattern - a UDT name pattern; may be a fully-qualified name
    Returns:
    aResultSet object in which a row gives information about the designated UDT
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
    See Also:
    getSearchStringEscape()
  - getSuperTables
```
ResultSet getSuperTables(String catalog,String schemaPattern,String tableNamePattern)                  throwsSQLException
```
    Retrieves a description of the table hierarchies defined in a particular schema in this database.
    Only supertable information for tables matching the catalog, schema and table name are returned. The table name parameter may be a fully- qualified name, in which case, the catalog and schemaPattern parameters are ignored. If a table does not have a super table, it is not listed here. Supertables have to be defined in the same catalog and schema as the sub tables. Therefore, the type description does not need to include this information for the supertable.
    Each type description has the following columns:
    TABLE_CAT String=> the type's catalog (may benull)
    TABLE_SCHEM String=> type's schema (may benull)
    TABLE_NAME String=> type name
    SUPERTABLE_NAME String=> the direct super type's name
    Note: If the driver does not support type hierarchies, an empty result set is returned.
    Parameters:
    catalog - a catalog name; "" retrieves those without a catalog;null means drop catalog name from the selection criteria
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    tableNamePattern - a table name pattern; may be a fully-qualified name
    Returns:
    aResultSet object in which each row is a type description
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
    See Also:
    getSearchStringEscape()
  - getAttributes
```
ResultSet getAttributes(String catalog,String schemaPattern,String typeNamePattern,String attributeNamePattern)                 throwsSQLException
```
    Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.
    Descriptions are returned only for attributes of UDTs matching the catalog, schema, type, and attribute name criteria. They are ordered byTYPE_CAT,TYPE_SCHEM,TYPE_NAME andORDINAL_POSITION. This description does not contain inherited attributes.
    TheResultSet object that is returned has the following columns:
    TYPE_CAT String=> type catalog (may benull)
    TYPE_SCHEM String=> type schema (may benull)
    TYPE_NAME String=> type name
    ATTR_NAME String=> attribute name
    DATA_TYPE int=> attribute type SQL type from java.sql.Types
    ATTR_TYPE_NAME String=> Data source dependent type name. For a UDT, the type name is fully qualified. For a REF, the type name is fully qualified and represents the target type of the reference type.
    ATTR_SIZE int=> column size. For char or date types this is the maximum number of characters; for numeric or decimal types this is precision.
    DECIMAL_DIGITS int=> the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable.
    NUM_PREC_RADIX int=> Radix (typically either 10 or 2)
    NULLABLE int=> whether NULL is allowed
    attributeNoNulls - might not allow NULL values
    attributeNullable - definitely allows NULL values
    attributeNullableUnknown - nullability unknown
    REMARKS String=> comment describing column (may benull)
    ATTR_DEF String=> default value (may benull)
    SQL_DATA_TYPE int=> unused
    SQL_DATETIME_SUB int=> unused
    CHAR_OCTET_LENGTH int=> for char types the maximum number of bytes in the column
    ORDINAL_POSITION int=> index of the attribute in the UDT (starting at 1)
    IS_NULLABLE String=> ISO rules are used to determine the nullability for a attribute.
    YES --- if the attribute can include NULLs
    NO --- if the attribute cannot include NULLs
    empty string --- if the nullability for the attribute is unknown
    SCOPE_CATALOG String=> catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
    SCOPE_SCHEMA String=> schema of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
    SCOPE_TABLE String=> table name that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
    SOURCE_DATA_TYPE short=> source type of a distinct type or user-generated Ref type,SQL type from java.sql.Types (null if DATA_TYPE isn't DISTINCT or user-generated REF)
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    typeNamePattern - a type name pattern; must match the type name as it is stored in the database
    attributeNamePattern - an attribute name pattern; must match the attribute name as it is declared in the database
    Returns:
    aResultSet object in which each row is an attribute description
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
    See Also:
    getSearchStringEscape()
  - supportsResultSetHoldability
```
boolean supportsResultSetHoldability(int holdability)                              throwsSQLException
```
    Retrieves whether this database supports the given result set holdability.
    Parameters:
    holdability - one of the following constants:ResultSet.HOLD_CURSORS_OVER_COMMIT orResultSet.CLOSE_CURSORS_AT_COMMIT
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
    See Also:
    Connection
  - getResultSetHoldability
```
int getResultSetHoldability()                     throwsSQLException
```
    Retrieves this database's default holdability forResultSet objects.
    Returns:
    the default holdability; eitherResultSet.HOLD_CURSORS_OVER_COMMIT orResultSet.CLOSE_CURSORS_AT_COMMIT
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - getDatabaseMajorVersion
```
int getDatabaseMajorVersion()                     throwsSQLException
```
    Retrieves the major version number of the underlying database.
    Returns:
    the underlying database's major version
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - getDatabaseMinorVersion
```
int getDatabaseMinorVersion()                     throwsSQLException
```
    Retrieves the minor version number of the underlying database.
    Returns:
    underlying database's minor version
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - getJDBCMajorVersion
```
int getJDBCMajorVersion()                 throwsSQLException
```
    Retrieves the major JDBC version number for this driver.
    Returns:
    JDBC version major number
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - getJDBCMinorVersion
```
int getJDBCMinorVersion()                 throwsSQLException
```
    Retrieves the minor JDBC version number for this driver.
    Returns:
    JDBC version minor number
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - getSQLStateType
```
int getSQLStateType()             throwsSQLException
```
    Indicates whether the SQLSTATE returned bySQLException.getSQLState is X/Open (now known as Open Group) SQL CLI or SQL:2003.
    Returns:
    the type of SQLSTATE; one of: sqlStateXOpen or sqlStateSQL
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - locatorsUpdateCopy
```
boolean locatorsUpdateCopy()                    throwsSQLException
```
    Indicates whether updates made to a LOB are made on a copy or directly to the LOB.
    Returns:
    true if updates are made to a copy of the LOB;false if updates are made directly to the LOB
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - supportsStatementPooling
```
boolean supportsStatementPooling()                          throwsSQLException
```
    Retrieves whether this database supports statement pooling.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.4
  - getRowIdLifetime
```
RowIdLifetime getRowIdLifetime()                        throwsSQLException
```
    Indicates whether or not this data source supports the SQLROWID type, and if so the lifetime for which aRowId object remains valid.
    The returned int values have the following relationship:
    ROWID_UNSUPPORTED < ROWID_VALID_OTHER < ROWID_VALID_TRANSACTION < ROWID_VALID_SESSION < ROWID_VALID_FOREVER
    so conditional logic such as
    if (metadata.getRowIdLifetime() > DatabaseMetaData.ROWID_VALID_TRANSACTION)
    can be used. Valid Forever means valid across all Sessions, and valid for a Session means valid across all its contained Transactions.
    Returns:
    the status indicating the lifetime of aRowId
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.6
  - getSchemas
```
ResultSet getSchemas(String catalog,String schemaPattern)              throwsSQLException
```
    Retrieves the schema names available in this database. The results are ordered byTABLE_CATALOG andTABLE_SCHEM.
    The schema columns are:
    TABLE_SCHEM String=> schema name
    TABLE_CATALOG String=> catalog name (may benull)
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database;"" retrieves those without a catalog; null means catalog name should not be used to narrow down the search.
    schemaPattern - a schema name; must match the schema name as it is stored in the database; null means schema name should not be used to narrow down the search.
    Returns:
    aResultSet object in which each row is a schema description
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.6
    See Also:
    getSearchStringEscape()
  - supportsStoredFunctionsUsingCallSyntax
```
boolean supportsStoredFunctionsUsingCallSyntax()                                        throwsSQLException
```
    Retrieves whether this database supports invoking user-defined or vendor functions using the stored procedure escape syntax.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.6
  - autoCommitFailureClosesAllResultSets
```
boolean autoCommitFailureClosesAllResultSets()                                      throwsSQLException
```
    Retrieves whether aSQLException while autoCommit istrue indicates that all open ResultSets are closed, even ones that are holdable. When aSQLException occurs while autocommit istrue, it is vendor specific whether the JDBC driver responds with a commit operation, a rollback operation, or by doing neither a commit nor a rollback. A potential result of this difference is in whether or not holdable ResultSets are closed.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.6
  - getClientInfoProperties
```
ResultSet getClientInfoProperties()                           throwsSQLException
```
    Retrieves a list of the client info properties that the driver supports. The result set contains the following columns
    NAME String=> The name of the client info property
    MAX_LEN int=> The maximum length of the value for the property
    DEFAULT_VALUE String=> The default value of the property
    DESCRIPTION String=> A description of the property. This will typically contain information as to where this property is stored in the database.
    TheResultSet is sorted by the NAME column
    Returns:
    AResultSet object; each row is a supported client info property
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.6
  - getFunctions
```
ResultSet getFunctions(String catalog,String schemaPattern,String functionNamePattern)                throwsSQLException
```
    Retrieves a description of the system and user functions available in the given catalog.
    Only system and user function descriptions matching the schema and function name criteria are returned. They are ordered byFUNCTION_CAT,FUNCTION_SCHEM,FUNCTION_NAME andSPECIFIC_ NAME.
    Each function description has the following columns:
    FUNCTION_CAT String=> function catalog (may benull)
    FUNCTION_SCHEM String=> function schema (may benull)
    FUNCTION_NAME String=> function name. This is the name used to invoke the function
    REMARKS String=> explanatory comment on the function
    FUNCTION_TYPE short=> kind of function:
    functionResultUnknown - Cannot determine if a return value or table will be returned
    functionNoTable- Does not return a table
    functionReturnsTable - Returns a table
    SPECIFIC_NAME String=> the name which uniquely identifies this function within its schema. This is a user specified, or DBMS generated, name that may be different then theFUNCTION_NAME for example with overload functions
    A user may not have permission to execute any of the functions that are returned bygetFunctions
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    functionNamePattern - a function name pattern; must match the function name as it is stored in the database
    Returns:
    ResultSet - each row is a function description
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.6
    See Also:
    getSearchStringEscape()
  - getFunctionColumns
```
ResultSet getFunctionColumns(String catalog,String schemaPattern,String functionNamePattern,String columnNamePattern)                      throwsSQLException
```
    Retrieves a description of the given catalog's system or user function parameters and return type.
    Only descriptions matching the schema, function and parameter name criteria are returned. They are ordered byFUNCTION_CAT,FUNCTION_SCHEM,FUNCTION_NAME andSPECIFIC_ NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.
    Each row in theResultSet is a parameter description, column description or return type description with the following fields:
    FUNCTION_CAT String=> function catalog (may benull)
    FUNCTION_SCHEM String=> function schema (may benull)
    FUNCTION_NAME String=> function name. This is the name used to invoke the function
    COLUMN_NAME String=> column/parameter name
    COLUMN_TYPE Short=> kind of column/parameter:
    functionColumnUnknown - nobody knows
    functionColumnIn - IN parameter
    functionColumnInOut - INOUT parameter
    functionColumnOut - OUT parameter
    functionColumnReturn - function return value
    functionColumnResult - Indicates that the parameter or column is a column in theResultSet
    DATA_TYPE int=> SQL type from java.sql.Types
    TYPE_NAME String=> SQL type name, for a UDT type the type name is fully qualified
    PRECISION int=> precision
    LENGTH int=> length in bytes of data
    SCALE short=> scale - null is returned for data types where SCALE is not applicable.
    RADIX short=> radix
    NULLABLE short=> can it contain NULL.
    functionNoNulls - does not allow NULL values
    functionNullable - allows NULL values
    functionNullableUnknown - nullability unknown
    REMARKS String=> comment describing column/parameter
    CHAR_OCTET_LENGTH int=> the maximum length of binary and character based parameters or columns. For any other datatype the returned value is a NULL
    ORDINAL_POSITION int=> the ordinal position, starting from 1, for the input and output parameters. A value of 0 is returned if this row describes the function's return value. For result set columns, it is the ordinal position of the column in the result set starting from 1.
    IS_NULLABLE String=> ISO rules are used to determine the nullability for a parameter or column.
    YES --- if the parameter or column can include NULLs
    NO --- if the parameter or column cannot include NULLs
    empty string --- if the nullability for the parameter or column is unknown
    SPECIFIC_NAME String=> the name which uniquely identifies this function within its schema. This is a user specified, or DBMS generated, name that may be different then theFUNCTION_NAME for example with overload functions
    The PRECISION column represents the specified column size for the given parameter or column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    functionNamePattern - a procedure name pattern; must match the function name as it is stored in the database
    columnNamePattern - a parameter name pattern; must match the parameter or column name as it is stored in the database
    Returns:
    ResultSet - each row describes a user function parameter, column or return type
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.6
    See Also:
    getSearchStringEscape()
  - getPseudoColumns
```
ResultSet getPseudoColumns(String catalog,String schemaPattern,String tableNamePattern,String columnNamePattern)                    throwsSQLException
```
    Retrieves a description of the pseudo or hidden columns available in a given table within the specified catalog and schema. Pseudo or hidden columns may not always be stored within a table and are not visible in a ResultSet unless they are specified in the query's outermost SELECT list. Pseudo or hidden columns may not necessarily be able to be modified. If there are no pseudo or hidden columns, an empty ResultSet is returned.
    Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered byTABLE_CAT,TABLE_SCHEM,TABLE_NAME andCOLUMN_NAME.
    Each column description has the following columns:
    TABLE_CAT String=> table catalog (may benull)
    TABLE_SCHEM String=> table schema (may benull)
    TABLE_NAME String=> table name
    COLUMN_NAME String=> column name
    DATA_TYPE int=> SQL type from java.sql.Types
    COLUMN_SIZE int=> column size.
    DECIMAL_DIGITS int=> the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable.
    NUM_PREC_RADIX int=> Radix (typically either 10 or 2)
    COLUMN_USAGE String=> The allowed usage for the column. The value returned will correspond to the enum name returned byPseudoColumnUsage.name()
    REMARKS String=> comment describing column (may benull)
    CHAR_OCTET_LENGTH int=> for char types the maximum number of bytes in the column
    IS_NULLABLE String=> ISO rules are used to determine the nullability for a column.
    YES --- if the column can include NULLs
    NO --- if the column cannot include NULLs
    empty string --- if the nullability for the column is unknown
    The COLUMN_SIZE column specifies the column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Parameters:
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search
    tableNamePattern - a table name pattern; must match the table name as it is stored in the database
    columnNamePattern - a column name pattern; must match the column name as it is stored in the database
    Returns:
    ResultSet - each row is a column description
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.7
    See Also:
    PseudoColumnUsage
  - generatedKeyAlwaysReturned
```
boolean generatedKeyAlwaysReturned()                            throwsSQLException
```
    Retrieves whether a generated key will always be returned if the column name(s) or index(es) specified for the auto generated key column(s) are valid and the statement succeeds. The key that is returned may or may not be based on the column(s) for the auto generated key. Consult your JDBC driver documentation for additional details.
    Returns:
    true if so;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.7
  - getMaxLogicalLobSize
```
default long getMaxLogicalLobSize()                           throwsSQLException
```
    Retrieves the maximum number of bytes this database allows for the logical size for aLOB.
    The default implementation will return0
    Returns:
    the maximum number of bytes allowed; a result of zero means that there is no limit or the limit is not known
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.8
  - supportsRefCursors
```
default boolean supportsRefCursors()                            throwsSQLException
```
    Retrieves whether this database supports REF CURSOR.
    The default implementation will returnfalse
    Returns:
    true if this database supports REF CURSOR;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    1.8
  - supportsSharding
```
default boolean supportsSharding()                          throwsSQLException
```
    Retrieves whether this database supports sharding.
    Implementation Requirements:
    The default implementation will returnfalse
    Returns:
    true if this database supports sharding;false otherwise
    Throws:
    SQLException - if a database access error occurs
    Since:
    9

Movatterモバイル変換

Interface DatabaseMetaData

Field Summary

Method Summary

Methods inherited from interface java.sql.Wrapper

Field Detail

procedureResultUnknown

procedureNoResult

procedureReturnsResult

procedureColumnUnknown

procedureColumnIn

procedureColumnInOut

procedureColumnOut

procedureColumnReturn

procedureColumnResult

procedureNoNulls

procedureNullable

procedureNullableUnknown

columnNoNulls

columnNullable

columnNullableUnknown

bestRowTemporary

bestRowTransaction

bestRowSession

bestRowUnknown

bestRowNotPseudo

bestRowPseudo

versionColumnUnknown

versionColumnNotPseudo

versionColumnPseudo

importedKeyCascade

importedKeyRestrict

importedKeySetNull

importedKeyNoAction

importedKeySetDefault

importedKeyInitiallyDeferred

importedKeyInitiallyImmediate

importedKeyNotDeferrable

typeNoNulls

typeNullable

typeNullableUnknown

typePredNone

typePredChar

typePredBasic

typeSearchable

tableIndexStatistic

tableIndexClustered

tableIndexHashed

tableIndexOther

attributeNoNulls

attributeNullable

attributeNullableUnknown

sqlStateXOpen

sqlStateSQL

sqlStateSQL99

functionColumnUnknown

functionColumnIn

functionColumnInOut

functionColumnOut

functionReturn

functionColumnResult

functionNoNulls

functionNullable

functionNullableUnknown

functionResultUnknown

functionNoTable

functionReturnsTable

Method Detail

allProceduresAreCallable

allTablesAreSelectable

getURL

getUserName

isReadOnly

nullsAreSortedHigh

nullsAreSortedLow

nullsAreSortedAtStart

nullsAreSortedAtEnd

getDatabaseProductName

getDatabaseProductVersion

getDriverName