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https://dev.mysql.com/doc/refman/8.4/en/reserved-accounts.html
This account is locked so that it cannot be used for client connections. This account is locked so that it cannot be used for client connections. This account is locked so that it cannot be used for client connections. One part of the MySQL ...
https://dev.mysql.com/doc/refman/8.4/en/restart.html
Note After executing a RESTART statement, the client can expect the current connection to be lost. If auto-reconnect is enabled, the connection is reestablished after the server restarts. One use for RESTART is when it is not possible or convenient ...
https://dev.mysql.com/doc/refman/8.4/en/show-variables.html
These are the values used to initialize the corresponding session variables for new connections to MySQL. With a SESSION modifier, the statement displays the system variable values that are in effect for the current connection. SHOW [GLOBAL | ...
https://dev.mysql.com/doc/refman/8.4/en/string-functions-charset.html
For operations that convert to character data, the character set and collation of the strings that result from the operations are defined by the character_set_connection and collation_connection system variables that determine the default connection ... MySQL has many operators and functions that return a ...
https://dev.mysql.com/doc/refman/8.4/en/system-variable-privileges.html
In addition, you must connect to the server using an encrypted connection and supply an SSL certificate with the Subject value specified by the persist_only_admin_x509_subject system variable. For persist-restricted variables, RESET PERSIST does not ...(For information about dynamic variables, see Section 7.1.9.2, “Dynamic System Variables”.) For certain global system variables, SET can be used to persist their value to the mysqld-auto.cnf file in the data directory, to affect server operation for subsequent ...
https://dev.mysql.com/doc/refman/8.4/en/time-zone-support.html
Each client that connects has its own session time zone setting, given by the session time_zone variable. For example: mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql The mysql command shown here assumes that you connect to the ...
https://dev.mysql.com/doc/refman/8.4/en/type-conversion.html
Implicit conversion of a numeric or temporal value to string produces a value that has a character set and collation determined by the character_set_connection and collation_connection system variables. For information about connection character ...
https://dev.mysql.com/doc/refman/8.4/en/using-explain.html
When EXPLAIN is used with FOR CONNECTION connection_id rather than an explainable statement, it displays the execution plan for the statement executing in the named connection. See Section 10.8.4, “Obtaining Execution Plan Information for a Named ... The EXPLAIN statement provides information about how MySQL executes statements: EXPLAIN works with SELECT, DELETE, INSERT, REPLACE, and UPDATE ...
https://dev.mysql.com/doc/refman/8.4/en/windows-restrictions.html
Limited number of ports Windows systems have about 4,000 ports available for client connections, and after a connection on a port closes, it takes two to four minutes before the port can be reused. In situations where clients connect to and ... The ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/backup-prep-gather.html
When connection and data layout information is available from the configuration file, you no longer need to supply separately most of the information listed below. Before backing up a particular database server for the first time, gather some ...