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https://dev.mysql.com/doc/refman/5.7/en/dba-dtrace-server.html
Support for DTrace is deprecated in MySQL 5.7 and is removed in MySQL 8.0. The DTrace probes in the MySQL server are designed to provide information about the execution of queries within MySQL and the different areas of the system being utilized ...
https://dev.mysql.com/doc/refman/5.7/en/dbug-package.html
The debug_options value is a sequence of colon-separated fields: field_1:field_2:...:field_N Each field within the value consists of a mandatory flag character, optionally preceded by a + or - character, and optionally followed by a comma-separated ... The MySQL server and most MySQL clients are compiled with the DBUG package originally created by Fred ...
https://dev.mysql.com/doc/refman/5.7/en/declare-cursor.html
For information available through SHOW statements, it is possible in many cases to obtain equivalent information by using a cursor with an INFORMATION_SCHEMA table. DECLARE cursor_name CURSOR FOR select_statement This statement declares a cursor ...
https://dev.mysql.com/doc/refman/5.7/en/describe.html
The DESCRIBE and EXPLAIN statements are synonyms, used either to obtain information about table structure or query execution plans. For more information, see Section 13.7.5.5, “SHOW COLUMNS Statement”, and Section 13.8.2, “EXPLAIN ...
https://dev.mysql.com/doc/refman/5.7/en/do.html
For example, DO id FROM t1 is invalid because it references a table. In most respects, DO is shorthand for SELECT expr, ..., but has the advantage that it is slightly faster when you do not care about the result. DO is useful primarily with ...
https://dev.mysql.com/doc/refman/5.7/en/document-store-concepts.html
CRUD Operations Create, Read, Update and Delete (CRUD) operations are the four basic operations that can be performed on a database Collection or Table. This section explains the concepts introduced as part of using MySQL as a document store.
https://dev.mysql.com/doc/refman/5.7/en/document-store-setting-up.html
A non-root account can be used to install the plugin as long as the account has INSERT privilege for the mysql.plugin table. To use MySQL 5.7 as a document store, the X Plugin needs to be installed. Then you can use X Protocol to communicate with ...
https://dev.mysql.com/doc/refman/5.7/en/downgrade-before-you-begin.html
The backup should include the mysql database, which contains the MySQL system tables. Review Section 2.11.2, “Downgrade Paths” to ensure that your intended downgrade path is supported. Review Section 2.11.3, “Downgrade Notes” for items that ...
https://dev.mysql.com/doc/refman/5.7/en/drop-logfile-group.html
(For information on creating log file groups, see Section 13.1.15, “CREATE LOGFILE GROUP Statement”.) Important Before dropping a log file group, you must drop all tablespaces that use that log file group for UNDO logging. DROP LOGFILE GROUP ...
https://dev.mysql.com/doc/refman/5.7/en/drop-user.html
It removes privilege rows for the account from all grant tables. The DROP USER statement removes one or more MySQL accounts and their privileges. To use DROP USER, you must have the global CREATE USER privilege, or the DELETE privilege for the mysql ...