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Java™ Platform
Standard Ed. 6

Interface DatabaseMetaData

All Superinterfaces:: Wrapper

public interfaceDatabaseMetaData extendsWrapper
extendsWrapper

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.


	`attributeNoNulls` Indicates that`NULL` values might not be allowed.
	`attributeNullable` Indicates that`NULL` values are definitely allowed.
	`attributeNullableUnknown` Indicates that whether`NULL` values are allowed is not known.
	`bestRowNotPseudo` Indicates that the best row identifier is NOT a pseudo column.
	`bestRowPseudo` Indicates that the best row identifier is a pseudo column.
	`bestRowSession` Indicates that the scope of the best row identifier is the remainder of the current session.
	`bestRowTemporary` Indicates that the scope of the best row identifier is very temporary, lasting only while the row is being used.
	`bestRowTransaction` Indicates that the scope of the best row identifier is the remainder of the current transaction.
	`bestRowUnknown` Indicates that the best row identifier may or may not be a pseudo column.
	`columnNoNulls` Indicates that the column might not allow`NULL` values.
	`columnNullable` Indicates that the column definitely allows`NULL` values.
	`columnNullableUnknown` Indicates that the nullability of columns is unknown.
	`functionColumnIn` Indicates that the parameter or column is an IN parameter.
	`functionColumnInOut` Indicates that the parameter or column is an INOUT parameter.
	`functionColumnOut` Indicates that the parameter or column is an OUT parameter.
	`functionColumnResult` Indicates that the parameter or column is a column in a result set.
	`functionColumnUnknown` Indicates that type of the parameter or column is unknown.
	`functionNoNulls` Indicates that`NULL` values are not allowed.
	`functionNoTable` Indicates that the function does not return a table.
	`functionNullable` Indicates that`NULL` values are allowed.
	`functionNullableUnknown` Indicates that whether`NULL` values are allowed is unknown.
	`functionResultUnknown` Indicates that it is not known whether the function returns a result or a table.
	`functionReturn` Indicates that the parameter or column is a return value.
	`functionReturnsTable` Indicates that the function returns a table.
	`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.
	`importedKeyInitiallyDeferred` Indicates deferrability.
	`importedKeyInitiallyImmediate` Indicates deferrability.
	`importedKeyNoAction` For the columns`UPDATE_RULE` and`DELETE_RULE`, indicates that if the primary key has been imported, it cannot be updated or deleted.
	`importedKeyNotDeferrable` Indicates deferrability.
	`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.
	`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.
	`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`.
	`procedureColumnIn` Indicates that the column stores IN parameters.
	`procedureColumnInOut` Indicates that the column stores INOUT parameters.
	`procedureColumnOut` Indicates that the column stores OUT parameters.
	`procedureColumnResult` Indicates that the column stores results.
	`procedureColumnReturn` Indicates that the column stores return values.
	`procedureColumnUnknown` Indicates that type of the column is unknown.
	`procedureNoNulls` Indicates that`NULL` values are not allowed.
	`procedureNoResult` Indicates that the procedure does not return a result.
	`procedureNullable` Indicates that`NULL` values are allowed.
	`procedureNullableUnknown` Indicates that whether`NULL` values are allowed is unknown.
	`procedureResultUnknown` Indicates that it is not known whether the procedure returns a result.
	`procedureReturnsResult` Indicates that the procedure returns a result.
	`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.
	`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.
	`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.
	`tableIndexClustered` Indicates that this table index is a clustered index.
	`tableIndexHashed` Indicates that this table index is a hashed index.
	`tableIndexOther` Indicates that this table index is not a clustered index, a hashed index, or table statistics; it is something other than these.
	`tableIndexStatistic` Indicates that this column contains table statistics that are returned in conjunction with a table's index descriptions.
	`typeNoNulls` Indicates that a`NULL` value is NOT allowed for this data type.
	`typeNullable` Indicates that a`NULL` value is allowed for this data type.
	`typeNullableUnknown` Indicates that it is not known whether a`NULL` value is allowed for this data type.
	`typePredBasic` Indicates that the data type can be only be used in`WHERE` search clauses that do not use`LIKE` predicates.
	`typePredChar` Indicates that the data type can be only be used in`WHERE` search clauses that use`LIKE` predicates.
	`typePredNone` Indicates that`WHERE` search clauses are not supported for this type.
	`typeSearchable` Indicates that all`WHERE` search clauses can be based on this type.
	`versionColumnNotPseudo` Indicates that this version column is NOT a pseudo column.
	`versionColumnPseudo` Indicates that this version column is a pseudo column.
	`versionColumnUnknown` Indicates that this version column may or may not be a pseudo column.


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

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

procedureResultUnknown

static final intprocedureResultUnknown

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 intprocedureNoResult

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 intprocedureReturnsResult

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 intprocedureColumnUnknown

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 intprocedureColumnIn

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 intprocedureColumnInOut

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 intprocedureColumnOut

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 intprocedureColumnReturn

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 intprocedureColumnResult

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 intprocedureNoNulls

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 intprocedureNullable

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 intprocedureNullableUnknown

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 intcolumnNoNulls

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 intcolumnNullable

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 intcolumnNullableUnknown

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 intbestRowTemporary

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 intbestRowTransaction

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 intbestRowSession

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 intbestRowUnknown

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 intbestRowNotPseudo

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 intbestRowPseudo

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 intversionColumnUnknown

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 intversionColumnNotPseudo

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 intversionColumnPseudo

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 intimportedKeyCascade

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 intimportedKeyRestrict

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 intimportedKeySetNull

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 intimportedKeyNoAction

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 intimportedKeySetDefault

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 intimportedKeyInitiallyDeferred

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 intimportedKeyInitiallyImmediate

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 intimportedKeyNotDeferrable

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 inttypeNoNulls

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 inttypeNullable

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 inttypeNullableUnknown

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 inttypePredNone

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 inttypePredChar

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 inttypePredBasic

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 inttypeSearchable

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 shorttableIndexStatistic

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 shorttableIndexClustered

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 shorttableIndexHashed

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 shorttableIndexOther

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 shortattributeNoNulls

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 shortattributeNullable

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 shortattributeNullableUnknown

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 intsqlStateXOpen

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 intsqlStateSQL

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 intsqlStateSQL99

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