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https://dev.mysql.com/doc/refman/8.0/en/innodb-autocommit-commit-rollback.html
If autocommit mode is enabled, each SQL statement forms a single transaction on its own. If autocommit mode is disabled within a session with SET autocommit = 0, the session always has a transaction open. Grouping DML Operations with Transactions By ...By default, MySQL starts the session for each new connection with autocommit enabled, so MySQL does a commit after each SQL statement if that statement did not return an ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-waiter.html
SINGLE USER MODE: This is shown for all cluster data nodes when the cluster is in single user mode. --single-user The program waits for the cluster to enter single user mode. ndb_waiter repeatedly (each 100 milliseconds) prints out the status of ...
https://dev.mysql.com/doc/refman/8.0/en/point-in-time-recovery-binlog.html
If your binary log contains \0 (null) characters, that output cannot be parsed by mysql unless you invoke it with the --binary-mode option. For example: $> mysqlbinlog --read-from-remote-server --host=host_name --port=3306 --user=root --password ...
https://dev.mysql.com/doc/refman/8.0/en/precision-math.html
Precision math is based on these two features: SQL modes that control how strict the server is about accepting or rejecting invalid data. The choice of which approach to take is determined by the setting of the server SQL mode. For information about ... MySQL provides support for precision math: numeric value handling that results in extremely accurate results and a high degree control over invalid ...
https://dev.mysql.com/doc/refman/8.0/en/upgrade-prerequisites.html
There must be no obsolete SQL modes defined by sql_mode system variable. Attempting to use an obsolete SQL mode prevents MySQL 8.0 from starting. Applications that use obsolete SQL modes should be revised to avoid them. For information about SQL ...
https://dev.mysql.com/doc/refman/8.0/en/x-plugin-system-monitoring.html
We use MySQL Shell in Python mode, and the \sql command which enables you to issue SQL statements without changing to SQL mode. This is important, because if you instead try to switch to SQL mode, the procedure shows the result of this operation ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-monitoring.html
Enable the stage/innodb/clone% instruments: mysql> UPDATE performance_schema.setup_instruments SET ENABLED = 'YES' WHERE NAME LIKE 'stage/innodb/clone%'; Enable the stage event consumer tables, which include events_stages_current, ...You can monitor ...
https://dev.mysql.com/doc/refman/8.0/en/creating-accounts.html
Note Direct modification of grant tables using statements such as INSERT, UPDATE, or DELETE is discouraged and done at your own risk. To update the tables to the expected structure, perform the MySQL upgrade procedure. To manage MySQL accounts, use ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-triggers.html
Is it possible for a trigger to update tables on a remote server? A.5.12. Does MySQL have statement-level or row-level triggers? All triggers are FOR EACH ROW; that is, the trigger is activated for each row that is inserted, updated, or deleted. For ...Where can I find the documentation for MySQL 8.0 triggers? ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-tablestats-table.html
Table statistics are updated only for DELETE or UPDATE operations that modify indexed columns. Statistics are not updated by operations that modify only nonindexed columns. MODIFIED_COUNTER The number of rows modified by DML operations, such as ...