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MySQL Globalization
MySQL Information Schema
MySQL Installation Guide
MySQL and Linux/Unix
MySQL and macOS
MySQL Partitioning
MySQL Performance Schema
MySQL Replication
Using the MySQL Yum Repository
MySQL Restrictions and Limitations
Security in MySQL
MySQL and Solaris
Building MySQL from Source
Starting and Stopping MySQL
MySQL Tutorial
MySQL and Windows
MySQL NDB Cluster 7.5
Theusers table contains a row for each user who has connected to the MySQL server. For each user name, the table counts the current and total number of connections. The table size is autosized at server startup. To set the table size explicitly, set theperformance_schema_users_size system variable at server startup. To disable user statistics, set this variable to 0.
Theusers table has the following columns. For a description of how the Performance Schema maintains rows in this table, including the effect ofTRUNCATE TABLE, seeSection 25.12.8, “Performance Schema Connection Tables”.
USERThe client user name for the connection. This is
NULLfor an internal thread, or for a user session that failed to authenticate.CURRENT_CONNECTIONSThe current number of connections for the user.
TOTAL_CONNECTIONSThe total number of connections for the user.
PDF (A4) - 35.2Mb
Man Pages (TGZ) - 256.4Kb
Man Pages (Zip) - 361.2Kb
Info (Gzip) - 3.4Mb
Info (Zip) - 3.4Mb
MySQL Globalization
MySQL Information Schema
MySQL Installation Guide
MySQL and Linux/Unix
MySQL and macOS
MySQL Partitioning
MySQL Performance Schema
MySQL Replication
Using the MySQL Yum Repository
MySQL Restrictions and Limitations
Security in MySQL
MySQL and Solaris
Building MySQL from Source
Starting and Stopping MySQL
MySQL Tutorial
MySQL and Windows
MySQL NDB Cluster 7.5