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https://dev.mysql.com/doc/refman/8.0/en/help.html
HELP 'search_string' The HELP statement returns online information from the MySQL Reference Manual. Its proper operation requires that the help tables in the mysql database be initialized with help topic information (see Section 7.1.17, ...The HELP ...
https://dev.mysql.com/doc/refman/8.0/en/install-plugin.html
It requires the INSERT privilege for the mysql.plugin system table because it adds a row to that table to register the plugin. For example, set its value in a my.cnf file: [mysqld] plugin_dir=/path/to/plugin/directory If the value of plugin_dir is a ... INSTALL PLUGIN plugin_name SONAME 'shared_library_name' This statement installs a server ...
https://dev.mysql.com/doc/refman/8.0/en/loading-tables.html
If the statement fails, it is likely that your MySQL installation does not have local file capability enabled by default. When you want to add new records one at a time, the INSERT statement is useful. Suppose that Diane gets a new hamster named ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-logging.html
From MySQL 8.0.30, the redo log file size is determined by the innodb_redo_log_capacity setting. Before MySQL 8.0.30, the size and number of redo log files are configured using the innodb_log_file_size and innodb_log_files_in_group variables. Log ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-memory.html
To replicate this effect to replicas, the first time that the source uses a given MEMORY table after startup, it logs an event that notifies replicas that the table must be emptied by writing a DELETE or (from MySQL 8.0.22) TRUNCATE TABLE statement ...The replica also writes a DELETE or (from MySQL 8.0.22) TRUNCATE TABLE statement to its own binary log, which is passed on to any downstream replicas, causing them to empty their own MEMORY ...
https://dev.mysql.com/doc/refman/8.0/en/replication-mode-change-online-concepts.html
The modes of replication available in MySQL rely on different techniques for identifying logged transactions. An anonymous transaction has no GTID; MySQL 8.0 ensures that every anonymous transaction in a log is preceded by an ... Before setting the ...
https://dev.mysql.com/doc/refman/8.0/en/replication-rules-channel-based-filters.html
Before MySQL 8.0, all replication filters were global, so filters were applied to all replication channels. From MySQL 8.0, replication filters can be global or channel specific, enabling you to configure multi-source replicas with replication ...
https://dev.mysql.com/doc/refman/8.0/en/server-configuration-validation.html
As of MySQL 8.0.16, MySQL Server supports a --validate-config option that enables the startup configuration to be checked for problems without running the server in normal operational mode: mysqld --validate-config If no errors are found, the ...If ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-restrictions.html
MySQL Enterprise Audit is subject to these general restrictions: Only SQL statements are logged. It is possible to use MySQL Enterprise Audit with MySQL NDB Cluster, subject to the following conditions: All changes to be logged must be done using ...Changes made by no-SQL APIs, such as memcached, Node.JS, and the NDB API, are not ...
https://dev.mysql.com/doc/refman/8.0/en/binary-log-formats.html
The server uses several logging formats to record information in the binary log: Replication capabilities in MySQL originally were based on propagation of SQL statements from source to replica. You can cause MySQL to use mixed logging explicitly by ...You can cause this format to be used by starting the server with ...