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https://dev.mysql.com/doc/refman/8.0/en/information-schema-st-units-of-measure-table.html
The ST_UNITS_OF_MEASURE table (available as of MySQL 8.0.14) provides information about acceptable units for the ST_Distance() function. The ST_UNITS_OF_MEASURE table has these columns: UNIT_NAME The name of the unit.
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript-table-update.html
You can use the update() method to modify one or more records in a table. To replace a city name in the city table, pass to the set() method the new city name. mysql-js> db.city.select(["ID", "Name", "CountryCode", "District", "Info"]).where("Name ...The update() method works by filtering a query to include only the records to be updated and then applying the operations you specify to those ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python-table-update.html
You can use the update() method to modify one or more records in a table. To replace a city name in the city table, pass to the set() method the new city name. mysql-py> db.city.select(["ID", "Name", "CountryCode", "District", "Info"]).where("Name ...The update() method works by filtering a query to include only the records to be updated and then applying the operations you specify to those ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-component-scheduler-tasks-table.html
The component_scheduler_tasks table contains a row for each scheduled task. Does a periodic refresh of the audit log in-memory rules cache by calling audit_log_flush INTERVAL_SECONDS: 100 TIMES_RUN: 5 TIMES_FAILED: 0 1 row in set (0.02 sec) The ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-connection-attribute-tables.html
These Performance Schema tables expose attribute information: session_account_connect_attrs: Connection attributes for the current session, and other sessions associated with the session account session_connect_attrs: Connection attributes for all ... Connection attributes are key-value pairs that application programs can pass to the server at connect ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-miscellaneous-tables.html
The following sections describe tables that do not fall into the table categories discussed in the preceding sections: component_scheduler_tasks: The current status of each scheduled task. user_defined_functions: Loadable functions registered by a ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-filters-table.html
This table shows the replication channel specific filters configured on this replica. The replication_applier_filters table has these columns: CHANNEL_NAME The name of replication channel with a replication filter configured. Each row provides ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-global-filters-table.html
This table shows the global replication filters configured on this replica. The replication_applier_global_filters table has these columns: FILTER_NAME The type of replication filter that has been configured. FILTER_RULE The rules configured for ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-checksum-table.html
CHECKSUM TABLE returns a checksum that is calculated row by row, using a method that depends on the table row storage format. The storage format is not guaranteed to remain the same between MySQL versions, so the checksum value might change ...
https://dev.mysql.com/doc/refman/8.0/en/create-table-secondary-indexes.html
Even with additional write costs, secondary indexes on virtual columns may be preferable to generated stored columns, which are materialized in the clustered index, resulting in larger tables that require more disk space and memory. row ...A ...