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https://dev.mysql.com/doc/refman/9.7/en/declare-local-variable.html
type [DEFAULT value] This statement declares local variables within stored programs. To provide a default value for a variable, include a DEFAULT clause. Local variables are treated like stored routine parameters with respect to data type and ...The ...
https://dev.mysql.com/doc/internals/en/custom-engine-variables-and-parameters.html
For more information on adding system variables, status variables, and options supported on the command line or configuration file, see Section 5.5, “Specifying mysqld Variables Within a Plugin”.
https://dev.mysql.com/doc/mysql-shell/9.7/en/mysql-shell-environment-variables.html
You can add folders to the module search path by adding them to the appropriate language-specific module search path environment variable. If you want to add to the search path immediately, modify the sys.path variable directly. The value of this ...MySQL Shell includes these folders in the module search paths when you start or restart MySQL ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-option-variable-reference.html
Table 29.16 Performance Schema Variable Reference Name Cmd-Line Option File System Var Status Var Var Scope Dynamic performance_schema Yes Yes Yes Global No Performance_schema_accounts_lost Yes Global No performance_schema_accounts_size Yes Yes Yes ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-user-variable-tables.html
The Performance Schema provides a user_variables_by_thread table that exposes user-defined variables. These are variables defined within a specific session and include a @ character preceding the name; see Section 11.4, “User-Defined Variables”. The user_variables_by_thread table has these columns: THREAD_ID The thread identifier of the session in which the variable is ...
https://dev.mysql.com/doc/refman/9.7/en/example-user-variables.html
You can employ MySQL user variables to remember results without having to store them in temporary variables in the client.
https://dev.mysql.com/doc/heatwave/en/mys-hw-limitations-variables.html
time_zone and timestamp variable settings are not passed to MySQL HeatWave when queries are offloaded.
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-show-variables.html
show variables The command displays the relevant settings for the current agent, including the cipher list and TLS version. mcm> show variables; +--------------------------+---------------------------+ | Variable_name | Value | ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-configurator-workflow-server.html
For more information, see the description of the server_id system variable. This does not apply to files and directories for specific products, such as the MySQL server data directory in %ProgramData% that is owned by SYSTEM. Upon success, the ...
https://dev.mysql.com/doc/refman/9.7/en/can-not-connect-to-server.html
If the server is started with the named_pipe system variable enabled, you can also connect with named pipes if you run the client on the host where the server is running. If the server was started with the skip_networking system variable enabled, it ... A MySQL client on Unix can connect to the mysqld server in two different ways: By using a Unix socket file to connect through a file in the file system (default /tmp/mysql.sock), or by using TCP/IP, which connects through a port ...