Search Results
https://dev.mysql.com/doc/refman/8.4/en/account-categories.html
Accounts with the SYSTEM_USER privilege are automatically assigned the AUDIT_ABORT_EXEMPT privilege, so that queries from the account are always executed even if an “abort” item in the audit log filter would block them. MySQL incorporates the ...
https://dev.mysql.com/doc/refman/8.4/en/adding-character-set.html
This section discusses the procedure for adding a character set to MySQL. The proper procedure depends on whether the character set is simple or complex: If the character set does not need special string collating routines for sorting and does not ...
https://dev.mysql.com/doc/refman/8.4/en/adding-collation.html
Warning User-defined collations are deprecated; you should expect support for them to be removed in a future version of MySQL. The MySQL 8.4 server issues a warning for any use of COLLATE user_defined_collation in an SQL statement; a warning is ...
https://dev.mysql.com/doc/refman/8.4/en/all-subqueries.html
The expression is TRUE if table t2 contains (-5,0,+5) because 10 is greater than all three values in t2. The expression is FALSE if table t2 contains (12,6,NULL,-100) because there is a single value 12 in table t2 that is greater than 10. The ...
https://dev.mysql.com/doc/refman/8.4/en/alter-logfile-group.html
ALTER LOGFILE GROUP logfile_group ADD UNDOFILE 'file_name' [INITIAL_SIZE [=] size] [WAIT] ENGINE [=] engine_name This statement adds an UNDO file named 'file_name' to an existing log file group logfile_group. An ALTER LOGFILE GROUP statement has ...
https://dev.mysql.com/doc/refman/8.4/en/alter-table-partition-operations.html
Partitioning-related clauses for ALTER TABLE can be used with partitioned tables for repartitioning, to add, drop, discard, import, merge, and split partitions, and to perform partitioning maintenance. Simply using a partition_options clause with ...
https://dev.mysql.com/doc/refman/8.4/en/ansi-diff-comments.html
Standard SQL uses the C syntax /* this is a comment */ for comments, and MySQL Server supports this syntax as well. MySQL also support extensions to this syntax that enable MySQL-specific SQL to be embedded in the comment; see Section 11.7, ...
https://dev.mysql.com/doc/refman/8.4/en/any-in-some-subqueries.html
The expression is TRUE if table t2 contains (21,14,7) because there is a value 7 in t2 that is less than 10. The expression is FALSE if table t2 contains (20,10), or if table t2 is empty. The expression is unknown (that is, NULL) if table t2 ...
https://dev.mysql.com/doc/refman/8.4/en/apis-ruby.html
The mysql2 Ruby gem provides an API for connecting to MySQL, performing queries, and iterating through results; it is intended to support MySQL 5.7 and MySQL 8.0. For more information, see the mysql2 page at RubyGems.org or the project's GitHub ...
https://dev.mysql.com/doc/refman/8.4/en/audit-log-elements.html
The AUDIT_ADMIN privilege enable users to administer the audit log, and the AUDIT_ABORT_EXEMPT privilege enables system users to execute queries that would otherwise be blocked by an “abort” item in the audit log filter. MySQL Enterprise Audit ...