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https://dev.mysql.com/doc/refman/8.0/en/innodb-standard-monitor.html
The contents include the statement that failed as well as information about the constraint that failed and the referenced and referencing tables. The Lock Monitor is the same as the Standard Monitor except that it includes additional lock ...
https://dev.mysql.com/doc/refman/8.0/en/using-encrypted-connections.html
Assuming that the server supports encrypted connections, a client can connect using encryption with no --ssl-mode option or with an explicit --ssl-mode=PREFERRED option: mysql Or: mysql --ssl-mode=PREFERRED For an account created with a REQUIRE SSL ...Instructions for creating any required certificate and key files are available in Section 8.3.3, “Creating SSL and RSA Certificates and ... Several ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-column-statistics-table.html
The COLUMN_STATISTICS table provides access to histogram statistics for column values. For information about histogram statistics, see Section 10.9.6, “Optimizer Statistics”, and Section 15.7.3.1, “ANALYZE TABLE Statement”. The ...You can ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-parameters-table.html
The PARAMETERS table provides information about parameters for stored routines (stored procedures and stored functions), and about return values for stored functions. The PARAMETERS table does not include built-in (native) functions or loadable ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-role-column-grants-table.html
The ROLE_COLUMN_GRANTS table (available as of MySQL 8.0.19) provides information about the column privileges for roles that are available to or granted by the currently enabled roles. The ROLE_COLUMN_GRANTS table has these columns: GRANTOR The user ...GRANTOR_HOST The host name part of the account that granted the ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-tablespaces-extensions-table.html
The TABLESPACES_EXTENSIONS table (available as of MySQL 8.0.21) provides information about tablespace attributes defined for primary storage engines. The TABLESPACES_EXTENSIONS table has these columns: TABLESPACE_NAME The name of the tablespace.
https://dev.mysql.com/doc/refman/8.0/en/information-schema-view-routine-usage-table.html
The VIEW_ROUTINE_USAGE table (available as of MySQL 8.0.13) provides access to information about stored functions used in view definitions. The table does not list information about built-in (native) functions or loadable functions used in the ...
https://dev.mysql.com/doc/refman/8.0/en/optimize-multi-tables.html
Some techniques for keeping individual queries fast involve splitting data across many tables. When the number of tables runs into the thousands or even millions, the overhead of dealing with all these tables becomes a new performance consideration.
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-innodb-redo-log-files-table.html
The innodb_redo_log_files table contains a row for each active InnoDB redo log file. The innodb_redo_log_files table has the following columns: FILE_ID The ID of the redo log file. FILE_NAME The path and file name of the redo log file. START_LSN ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-instance-tables.html
They provide event names and explanatory notes or status information: cond_instances: Condition synchronization object instances file_instances: File instances mutex_instances: Mutex synchronization object instances rwlock_instances: Lock ...There ...