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https://dev.mysql.com/doc/refman/9.7/en/dynamic-system-variables.html
Many server system variables are dynamic and can be set at runtime. For a description of the privilege requirements for setting system variables, see Section 7.1.9.1, “System Variable Privileges” The following table lists all dynamic system ...
https://dev.mysql.com/doc/refman/9.7/en/error-log-event-fields.html
Core Error Event Fields Optional Error Event Fields Core Error Event Fields These error event fields are core fields: time The event timestamp, with microsecond precision. Error events intended for the error log contain a set of fields, each of ...
https://dev.mysql.com/doc/refman/9.7/en/events-configuration.html
Events are executed by a special event scheduler thread; when we refer to the Event Scheduler, we actually refer to this thread. When running, the event scheduler thread and its current state can be seen by users having the PROCESS privilege in the ...
https://dev.mysql.com/doc/refman/9.7/en/faqs-triggers.html
MySQL does have specific special behavior for some TIMESTAMP columns, as well as for columns which are defined using AUTO_INCREMENT. Where can I find the documentation for MySQL 9.7 triggers? A.5.2. Is there a way to view all triggers in a given ...
https://dev.mysql.com/doc/refman/9.7/en/features.html
Data Types Many data types: signed/unsigned integers 1, 2, 3, 4, and 8 bytes long, FLOAT, DOUBLE, CHAR, VARCHAR, BINARY, VARBINARY, TEXT, BLOB, DATE, TIME, DATETIME, TIMESTAMP, YEAR, SET, ENUM, and OpenGIS spatial types. This section describes some ...
https://dev.mysql.com/doc/refman/9.7/en/federated-usagenotes.html
The insert_id and timestamp options are not propagated to the data provider. The following items indicate features that the FEDERATED storage engine does and does not support: The remote server must be a MySQL server. The remote table that a ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-primary-election-component.html
Gr_latest_primary_election_by_most_uptodate_member_timestamp: This timestamp is set whenever a new primary is elected using the most-up-to-date method. On failover, when in single-primary mode, use replication group member most-up-to-date status as ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-resource-manager-component.html
Gr_resource_manager_applier_channel_eviction_timestamp: When the last eviction caused by applier channel lag occurred. Gr_resource_manager_recovery_channel_eviction_timestamp: When the last eviction caused by recovery channel lag occurred. The ...
https://dev.mysql.com/doc/refman/9.7/en/information-schema-columns-table.html
on update CURRENT_TIMESTAMP for TIMESTAMP or DATETIME columns that have the ON UPDATE CURRENT_TIMESTAMP attribute. The related ST_GEOMETRY_COLUMNS table provides information about table columns that store spatial data. The COLUMNS table has these ...
https://dev.mysql.com/doc/refman/9.7/en/information-schema-triggers-table.html
This is a TIMESTAMP(2) value (with a fractional part in hundredths of seconds) for triggers. To see information about a table's triggers, you must have the TRIGGER privilege for the table. The TRIGGERS table has these columns: TRIGGER_CATALOG The ...