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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-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/mysqlshow.html
The mysqlshow client can be used to quickly see which databases exist, their tables, or a table's columns or indexes. If no table is given, all matching tables in the database are shown. If no column is given, all matching columns and column types ...The same information can be obtained by using those statements ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-myisam-bulk-data-loading.html
For a MyISAM table, you can use concurrent inserts to add rows at the same time that SELECT statements are running, if there are no deleted rows in middle of the data file. With some extra work, it is possible to make LOAD DATA run even faster for a ... These performance tips supplement the general guidelines for fast inserts in Section 10.2.5.1, “Optimizing INSERT ...
https://dev.mysql.com/doc/refman/8.0/en/connection-control-information-schema-tables.html
The following sections describe the INFORMATION_SCHEMA tables associated with the connection_control plugin.
https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema-compression-tables.html
There are two pairs of InnoDB INFORMATION_SCHEMA tables about compression that can provide insight into how well compression is working overall: INNODB_CMP and INNODB_CMP_RESET provide information about the number of compression operations and the ...INNODB_CMPMEM and INNODB_CMPMEM_RESET provide information about the way memory is allocated for ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-tables.html
This section covers topics related to InnoDB tables. ...