https://dev.mysql.com/server-system-variables.html
If the value of default_password_lifetime is a positive integer N, it indicates the permitted password lifetime; passwords must be changed every N days. lc_time_names Property Value Command-Line Format --lc-time-names=value System Variable ... The ...
https://dev.mysql.com/binary-log.html
For example, if your slaves never run more than three days behind, once a day you can execute mysqladmin flush-logs on the master and then remove any logs that are more than three days old. The binary log contains “events” that describe ...
https://dev.mysql.com/time.html
The hours part may be so large because the TIME type can be used not only to represent a time of day (which must be less than 24 hours), but also elapsed time or a time interval between two events (which may be much greater than 24 hours, or even ...
https://dev.mysql.com/added-deprecated-removed.html
This section lists server variables, status variables, and options that were added for the first time, have been deprecated, or have been removed in MySQL 8.0. Options and Variables Introduced in MySQL 8.0 Options and Variables Deprecated in MySQL ...
https://dev.mysql.com/controlling-query-plan-evaluation.html
Because the difference in performance between “good” and “bad” plans can be orders of magnitude (that is, seconds versus hours or even days), most query optimizers, including that of MySQL, perform a more or less exhaustive search for an ...
https://dev.mysql.com/grant-tables.html
A value of N greater than zero means that the password must be changed every N days. The mysql system database includes several grant tables that contain information about user accounts and the privileges held by them. For information about other ...
https://dev.mysql.com/alter-event.html
This example changes the SQL statement executed by myevent to one that deletes all records from mytable; it also changes the schedule for the event such that it executes once, one day after this ALTER EVENT statement is run. ALTER EVENT myevent ON ... ALTER [DEFINER = user] EVENT event_name [ON SCHEDULE schedule] [ON COMPLETION [NOT] PRESERVE] [RENAME TO new_event_name] [ENABLE | DISABLE | DISABLE ON SLAVE] [COMMENT 'string'] [DO event_body] The ALTER EVENT statement changes one or more of the characteristics of an existing event without the need to drop and recreate ...
https://dev.mysql.com/datetime.html
The server requires that month and day values be valid, and not merely in the range 1 to 12 and 1 to 31, respectively. MySQL does not accept TIMESTAMP values that include a zero in the day or month column or values that are not a valid date. This ...
https://dev.mysql.com/show-create-event.html
SHOW CREATE EVENT event_name This statement displays the CREATE EVENT statement needed to re-create a given event. It requires the EVENT privilege for the database from which the event is to be shown. For example (using the same event e_daily ...
https://dev.mysql.com/locale-support.html
The locale indicated by the lc_time_names system variable controls the language used to display day and month names and abbreviations. This variable affects the output from the DATE_FORMAT(), DAYNAME(), and MONTHNAME() functions. The lc_time_names ...
