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https://dev.mysql.com/doc/refman/8.0/en/backup-and-recovery.html
It is important to back up your databases so that you can recover your data and be up and running again in case problems occur, such as system crashes, hardware failures, or users deleting data by mistake. Backups are also essential as a safeguard ...
https://dev.mysql.com/doc/refman/8.0/en/case.html
CASE case_value WHEN when_value THEN statement_list [WHEN when_value THEN statement_list] ... [ELSE statement_list] END CASE Or: CASE WHEN search_condition THEN statement_list [WHEN search_condition THEN statement_list] ... [ELSE statement_list] ...
https://dev.mysql.com/doc/refman/8.0/en/change-master-to.html
] CHANGE MASTER TO changes the parameters that the replica server uses for connecting to the source and for reading data from the source. It also updates the contents of the replication metadata repositories (see Section 19.2.4, “Relay Log and ...
https://dev.mysql.com/doc/refman/8.0/en/change-replication-source-to.html
] CHANGE REPLICATION SOURCE TO changes the parameters that the replica server uses for connecting to the source and reading data from the source. It also updates the contents of the replication metadata repositories (see Section 19.2.4, “Relay Log ...
https://dev.mysql.com/doc/refman/8.0/en/changing-mysql-user.html
On Windows, you can run the server as a Windows service using a normal user account. On Linux, for installations performed using a MySQL repository or RPM packages, the MySQL server mysqld should be started by the local mysql operating system user.
https://dev.mysql.com/doc/refman/8.0/en/charset-errors.html
This section describes how the MySQL server uses character sets for constructing error messages. For information about the language of error messages (rather than the character set), see Section 12.12, “Setting the Error Message Language”. For ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf16.html
The utf16 character set is the ucs2 character set with an extension that enables encoding of supplementary characters: For a BMP character, utf16 and ucs2 have identical storage characteristics: same code values, same encoding, same length. For a ...
https://dev.mysql.com/doc/refman/8.0/en/charset-we-sets.html
Western European character sets cover most West European languages, such as French, Spanish, Catalan, Basque, Portuguese, Italian, Albanian, Dutch, German, Danish, Swedish, Norwegian, Finnish, Faroese, Icelandic, Irish, Scottish, and English. ascii ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-limitations.html
The clone plugin is subject to these limitations: An instance cannot be cloned from a different MySQL server series. For example, you cannot clone between MySQL 8.0 and MySQL 8.4, but can clone within a series such as MySQL 8.0.37 and MySQL 8.0.42.
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-monitoring.html
You can monitor the status and progress of a cloning operation on the recipient MySQL server instance using the clone_status and clone_progress Performance Schema tables. Note The clone_status and clone_progress Performance Schema tables can be used ...