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https://dev.mysql.com/doc/refman/8.0/en/programs-using.html
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https://dev.mysql.com/doc/refman/8.0/en/what-is.html
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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/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/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/innodb-online-ddl-operations.html
When you add a primary key using the ALGORITHM=COPY clause, MySQL converts NULL values in the associated columns to default values: 0 for numbers, an empty string for character-based columns and BLOBs, and 0000-00-00 00:00:00 for DATETIME. A newly ... Online support details, syntax examples, and usage notes for DDL operations are provided under the following topics in this ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-secure-user.html
Alternatively, from MySQL 8.0.21, you can specify them on the START GROUP_REPLICATION statement each time Group Replication is started. If group members have been set up to support the use of a remote cloning operation as part of distributed ...