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https://dev.mysql.com/doc/refman/8.4/en/show-triggers.html
SHOW TRIGGERS [{FROM | IN} db_name] [LIKE 'pattern' | WHERE expr] SHOW TRIGGERS lists the triggers currently defined for tables in a database (the default database unless a FROM clause is given). This statement returns results only for databases ...
https://dev.mysql.com/doc/refman/8.4/en/sys-metrics.html
The metric type determines the source from which the name is taken: For global status variables: The VARIABLE_NAME column of the global_status table For InnoDB metrics: The NAME column of the INNODB_METRICS table For other metrics: A view-provided ... This view summarizes MySQL server metrics to show variable names, values, types, and whether they are ...
https://dev.mysql.com/doc/refman/8.4/en/sys-sys-get-config.html
Given a configuration option name, returns the option value from the sys_config table, or the provided default value (which may be NULL) if the option does not exist in the table. If so, the routine uses the variable value without reading the ...If ...
https://dev.mysql.com/doc/refman/8.4/en/triggers.html
A trigger is a named database object that is associated with a table, and that activates when a particular event occurs for the table. Some uses for triggers are to perform checks of values to be inserted into a table or to perform calculations on ...For example, rows can be inserted by INSERT or LOAD DATA statements, and an insert trigger activates for each inserted ...
https://dev.mysql.com/doc/refman/8.4/en/user-names.html
MySQL stores accounts in the user table of the mysql system database. For information about account representation in the user table, see Section 8.2.3, “Grant Tables”. Warning The MySQL user name length limit is hardcoded in MySQL servers and ...An account is defined in terms of a user name and the client host or hosts from which the user can connect to the ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-7.html
(Bug #37602657) If the row size exceeded the maximum allowed size due to innodb_strict_mode=OFF, confusing warning messages similar to "Cannot add field" could appear in certain situations, such as selecting from a table or dropping a column. (Bug ... Note These release notes were created with the assistance of MySQL HeatWave ...
https://dev.mysql.com/doc/relnotes/heatwave/en/news-9-6-0.html
(WL #17152) MySQL HeatWave Lakehouse now supports load validation of external tables with the introduction of the VALIDATE ONLY clause for the ALTER TABLE ... This enhancement enables you to validate whether a load of a table may succeed without ...
https://dev.mysql.com/doc/refman/8.4/en/crashing.html
The preceding means that normally you should not get corrupted tables unless one of the following happens: The MySQL server or the server host was killed in the middle of an update. Some external program is manipulating data files or index files at ... Each MySQL version is tested on many platforms before it is ...
https://dev.mysql.com/doc/refman/8.4/en/extended-show.html
Some extensions to SHOW statements accompany the implementation of INFORMATION_SCHEMA: SHOW can be used to get information about the structure of INFORMATION_SCHEMA itself. Several SHOW statements accept a WHERE clause that provides more ...
https://dev.mysql.com/doc/refman/8.4/en/full-disk.html
Other threads might be waiting for the table that caused the disk-full condition. Exceptions to the preceding behavior are when you use REPAIR TABLE or OPTIMIZE TABLE or when the indexes are created in a batch after LOAD DATA or after an ALTER TABLE ... This section describes how MySQL responds to disk-full errors (such as “no space left on device”), and to quota-exceeded errors (such as “write failed” or “user block limit ...