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https://dev.mysql.com/doc/refman/8.0/en/change-replication-filter.html
If the same filtering rule is specified multiple times, only the last such rule is actually used. Filters set using this statement differ from those set using the server options in two key respects: The statement does not require restarting the ...
https://dev.mysql.com/doc/refman/8.0/en/checksum-table.html
For large tables, this could take a long time, thus you would only perform this operation occasionally. For example, the storage format for temporal types such as TIME, DATETIME, and TIMESTAMP changed in MySQL 5.6 prior to MySQL 5.6.5, so if a 5.5 ...[QUICK | EXTENDED] CHECKSUM TABLE reports a checksum for the contents of a ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-concurrent-ddl.html
The clone_ddl_timeout variable defines the time in seconds on the donor and recipient that a cloning operation waits for a backup lock. If a backup lock is not obtained with the specified time limit, the cloning operation fails with an error. Prior ...
https://dev.mysql.com/doc/refman/8.0/en/compatibility.html
We use the phrase “the SQL standard” or “standard SQL” to mean the current version of the SQL Standard at any time. We are not targeting real-time support, although MySQL replication capabilities offer significant functionality. This ...
https://dev.mysql.com/doc/refman/8.0/en/concurrent-inserts.html
Use of the CONCURRENT option affects the performance of LOAD DATA a bit, even if no other session is using the table at the same time. If there are multiple INSERT statements, they are queued and performed in sequence, concurrently with the SELECT ...
https://dev.mysql.com/doc/refman/8.0/en/connection-control-installation.html
With this plugin-loading method, the option must be given each time the server starts. You can set the CONNECTION_CONTROL system variables at server startup or runtime. To set the relevant variables at server startup, put these lines in the server ... This section describes how to install the connection-control plugins, CONNECTION_CONTROL and ...
https://dev.mysql.com/doc/refman/8.0/en/connection-interfaces.html
To enable N inactive connection threads to be cached, set thread_cache_size to N at server startup or at runtime. Connection Volume Management To control the maximum number of clients the server permits to connect simultaneously, set the ... This ...
https://dev.mysql.com/doc/refman/8.0/en/converting-tables-to-innodb.html
If deadlock detection is disabled using the innodb_deadlock_detect configuration option, InnoDB relies on the innodb_lock_wait_timeout setting to roll back transactions in case of a deadlock. For rollback, no such mechanism is used, and the rollback ... If you have MyISAM tables that you want to convert to InnoDB for better reliability and scalability, review the following guidelines and tips before ...
https://dev.mysql.com/doc/refman/8.0/en/cost-model.html
These estimates are stored in the server_cost and engine_cost tables in the mysql system database and are configurable at any time. Cost Model General Operation The Cost Model Database Making Changes to the Cost Model Database Cost Model General ...
https://dev.mysql.com/doc/refman/8.0/en/creating-database.html
To make menagerie the current database, use this statement: mysql> USE menagerie Database changed Your database needs to be created only once, but you must select it for use each time you begin a mysql session. Note You can see at any time which ...