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https://dev.mysql.com/doc/refman/5.7/en/keyring.html
MySQL Server supports a keyring that enables internal server components and plugins to securely store sensitive information for later retrieval. The implementation comprises these elements: Keyring plugins that manage a backing store or communicate ...
https://dev.mysql.com/doc/refman/5.7/en/flow-control-functions.html
The second syntax returns the result for the first condition that is true. If no comparison or condition is true, the result after ELSE is returned, or NULL if there is no ELSE part. Note The syntax of the CASE operator described here differs ...
https://dev.mysql.com/doc/refman/5.7/en/database-use.html
The administrator needs to execute a statement like this: mysql> GRANT ALL ON menagerie.* TO 'your_mysql_name'@'your_client_host'; where your_mysql_name is the MySQL user name assigned to you and your_client_host is the host from which you connect ... Once you know how to enter SQL statements, you are ready to access a ...
https://dev.mysql.com/doc/refman/5.7/en/sys-schema-redundant-indexes.html
The schema_redundant_indexes view displays indexes that duplicate other indexes or are made redundant by them. In the following column descriptions, the dominant index is the one that makes the redundant index redundant. The ...
https://dev.mysql.com/doc/refman/5.7/en/mysqldumpslow.html
The MySQL slow query log contains information about queries that take a long time to execute (see Section 5.4.5, “The Slow Query Log”). mysqldumpslow parses MySQL slow query log files and summarizes their contents. Normally, mysqldumpslow ...
https://dev.mysql.com/doc/refman/5.7/en/sys-ps-trace-statement-digest.html
The procedure also attempts to execute EXPLAIN for the longest running example of the digest during the interval. This procedure disables binary logging during its execution by manipulating the session value of the sql_log_bin system variable.
https://dev.mysql.com/doc/refman/5.7/en/server-configuration.html
To determine the default command option and system variable values used by the server, execute this command: $> mysqld --verbose --help The command produces a list of all mysqld options and configurable system variables. The following examples ...
https://dev.mysql.com/doc/refman/5.7/en/upgrading-from-previous-series.html
FOR UPGRADE reports a table as needing a rebuild if it contains old temporal columns in pre-5.6.4 format (TIME, DATETIME, and TIMESTAMP columns without support for fractional seconds precision) and the avoid_temporal_upgrade system variable is ...
https://dev.mysql.com/doc/refman/5.7/en/sys-ps-trace-thread.html
in_max_runtime DECIMAL(20,2): The maximum number of seconds (which can be fractional) to collect data. This procedure disables binary logging during its execution by manipulating the session value of the sql_log_bin system variable. Use NULL to ...
https://dev.mysql.com/doc/refman/5.7/en/index-condition-pushdown-optimization.html
ICP can reduce the number of times the storage engine must access the base table and the number of times the MySQL server must access the storage engine. ICP is not supported with secondary indexes created on virtual generated columns. The second ...