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https://dev.mysql.com/doc/refman/8.4/en/myisamchk-general-options.html
The options described in this section can be used for any type of table maintenance operation performed by myisamchk. The sections following this one describe options that pertain only to specific operations, such as table checking or repairing.
https://dev.mysql.com/doc/refman/8.4/en/mysql-secure-installation.html
This program enables you to improve the security of your MySQL installation in the following ways: You can set a password for root accounts. You can remove root accounts that are accessible from outside the local host. You can remove the test ...
https://dev.mysql.com/doc/refman/8.4/en/using-system-variables.html
The MySQL server maintains many system variables that configure its operation. Section 7.1.8, “Server System Variables”, describes the meaning of these variables. System variables can be set at server startup using options on the command line ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-using-import-cluster-verify-pid-files.html
You must verify that each process in the wild cluster has a valid PID file. For purposes of this discussion, a valid PID file has the following characteristics: The file name is in the format of ndb_node_id.pid, where node_id is the node ID used ...
https://dev.mysql.com/doc/internals/en/risky-handling-around-additional-sessions.html
This is most probably good for the throughput of usual application but has some annoying consequences for the development of tests. If a disconnect <connection> or KILL <connection_id> or --exec <client program which connects to the server> occurs ...
https://dev.mysql.com/doc/refman/8.4/en/error-log-rule-based-filtering.html
The log_filter_dragnet log filter component enables log filtering based on user-defined rules. To enable the log_filter_dragnet filter, first load the filter component, then modify the log_error_services value. The following example enables ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-configurator-workflow-server.html
MySQL Configurator performs the initial configuration, a reconfiguration, and also functions as part of the uninstallation process. Note Full permissions are granted to the user executing MySQL Configurator to all generated files, such as my.ini.
https://dev.mysql.com/doc/refman/8.4/en/string-functions.html
For functions that operate on string positions, the first position is numbered 1. For functions that take length arguments, noninteger arguments are rounded to the nearest integer. ASCII(str) Returns the numeric value of the leftmost character of ...
https://dev.mysql.com/doc/refman/8.4/en/upgrading-what-is-upgraded.html
Installing a new version of MySQL may require upgrading these parts of the existing installation: The mysql system schema, which contains tables that store information required by the MySQL server as it runs (see Section 7.3, “The mysql System ...
https://dev.mysql.com/doc/refman/8.4/en/user-variables.html
You can store a value in a user-defined variable in one statement and refer to it later in another statement. This enables you to pass values from one statement to another. User variables are written as @var_name, where the variable name var_name ...