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https://dev.mysql.com/doc/refman/8.0/en/show-replica-status.html
From MySQL 8.0.22, use SHOW REPLICA STATUS in place of SHOW SLAVE STATUS, which is deprecated from that release. If you issue this statement using the mysql client, you can use a \G statement terminator rather than a semicolon to obtain a more ...
https://dev.mysql.com/doc/refman/8.0/en/with.html
A common table expression (CTE) is a named temporary result set that exists within the scope of a single statement and that can be referred to later within that statement, possibly multiple times. Like derived tables, a CTE cannot contain outer ...
https://dev.mysql.com/doc/refman/8.0/en/general-tablespaces.html
The server keeps tablespace metadata in memory for the lifetime of a tablespace. General tablespace data files can be placed in a directory relative to or independent of the MySQL data directory, which provides you with many of the data file and ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-quick-start.html
For example, setup_instruments lists the set of instruments for which events can be collected and shows which of them are enabled: mysql> SELECT NAME, ENABLED, TIMED FROM performance_schema.setup_instruments; ...For example, use these lines in the ... This section briefly introduces the Performance Schema with examples that show how to use ...
https://dev.mysql.com/doc/refman/8.0/en/json-attribute-functions.html
Prior to MySQL 8.0.26, an error is also raised if the path expression contains a * or ** wildcard. mysql> SELECT JSON_VALID('{"a": 1}'); +------------------------+ | JSON_VALID('{"a": 1}') | +------------------------+ | 1 | ... The functions in this ...
https://dev.mysql.com/doc/refman/8.0/en/replication-options-gtids.html
A SET @@GLOBAL.gtid_purged statement was issued on MySQL 5.7.7 or earlier, and the binary log that was active at the time of the SET @@GLOBAL.gtid_purged statement has not yet been purged. gtid_executed_compression_period Command-Line Format ... The ...For additional information, see Section 19.1.3, “Replication with Global Transaction ...
https://dev.mysql.com/doc/refman/8.0/en/dbug-package.html
Here are some example debug control strings as they might be specified on a shell command line: --debug=d:t --debug=d:f,main,subr1:F:L:t,20 --debug=d,input,output,files:n --debug=d:t:i:O,\\mysqld.trace For mysqld, it is also possible to change DBUG ... The MySQL server and most MySQL clients are compiled with the DBUG package originally created by Fred ...The ...
https://dev.mysql.com/doc/refman/8.0/en/checking-gpg-signature.html
The keyID for MySQL 8.0.44 packages and higher, MySQL 8.4.7 and higher, and MySQL 9.5.0 and higher is B7B3B788A8D3785C. After obtaining this key, you should compare it with the key following value before using it verify MySQL packages. Note The ...
https://dev.mysql.com/doc/refman/8.0/en/comments.html
MySQL Server supports three comment styles: From a # character to the end of the line. In MySQL, the -- (double-dash) comment style requires the second dash to be followed by at least one whitespace or control character, such as a space or tab.
https://dev.mysql.com/doc/refman/8.0/en/backup-types.html
(For example, the implementation may use copy-on-write techniques so that only parts of the file system modified after the snapshot time need be copied.) MySQL itself does not provide the capability for taking file system snapshots. Full Versus ...