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https://dev.mysql.com/doc/refman/8.4/en/drop-server.html
DROP SERVER [ IF EXISTS ] server_name Drops the server definition for the server named server_name. Dropping a server for a table does not affect any FEDERATED tables that used this connection information when they were created. DROP SERVER is not ...
https://dev.mysql.com/doc/refman/8.4/en/drop-user.html
The DROP USER statement removes one or more MySQL accounts and their privileges. It removes privilege rows for the account from all grant tables. Roles named in the mandatory_roles system variable value cannot be dropped. To use DROP USER, you must ...
https://dev.mysql.com/doc/refman/8.4/en/drop-view.html
If any views named in the argument list do not exist, the statement fails with an error indicating by name which nonexisting views it was unable to drop, and no changes are made. Note In MySQL 8.3 and earlier, DROP VIEW returns an error if any views ...
https://dev.mysql.com/doc/refman/8.4/en/error-log-filtering.html
Error log configuration normally includes one log filter component and one or more log sink components. For error log filtering, MySQL offers a choice of components: log_filter_internal: This filter component provides error log filtering based on ...
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/error-lost-connection.html
Usually it indicates network connectivity trouble and you should check the condition of your network if this error occurs frequently. If the error message includes “during query,” this is probably the case you are experiencing. Sometimes the ...
https://dev.mysql.com/doc/refman/8.4/en/error-message-language.html
By default, mysqld produces error messages in English, but they can be displayed instead in any of several other languages: Czech, Danish, Dutch, Estonian, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Norwegian-ny, ...
https://dev.mysql.com/doc/refman/8.4/en/event-scheduler.html
The MySQL Event Scheduler manages the scheduling and execution of events, that is, tasks that run according to a schedule. The following discussion covers the Event Scheduler and is divided into the following sections: Section 27.4.1, “Event ...
https://dev.mysql.com/doc/refman/8.4/en/example-foreign-keys.html
MySQL supports foreign keys, which permit cross-referencing related data across tables, and foreign key constraints, which help keep the related data consistent. A foreign key relationship involves a parent table that holds the initial column ...
https://dev.mysql.com/doc/refman/8.4/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.