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https://dev.mysql.com/doc/refman/8.0/en/firewall-usage.html
Before using MySQL Enterprise Firewall, install it according to the instructions provided in Section 8.4.7.2, “Installing or Uninstalling MySQL Enterprise Firewall”. This section describes how to configure MySQL Enterprise Firewall using SQL ...
https://dev.mysql.com/doc/refman/8.0/en/source-installation.html
Building MySQL from the source code enables you to customize build parameters, compiler optimizations, and installation location. For a list of systems on which MySQL is known to run, see ...
https://dev.mysql.com/doc/refman/8.0/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/8.0/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/8.0/en/audit-log-filtering.html
Note For audit log filtering to work as described here, the audit log plugin and the accompanying audit tables and functions must be installed. If the plugin is installed without the accompanying audit tables and functions needed for rule-based ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-reference.html
Unless those objects are installed, the audit_log plugin operates in legacy mode (deprecated in MySQL 8.0.34). Audit Log Tables MySQL Enterprise Audit uses tables in the mysql system database for persistent storage of filter and user account data.
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/constant-folding-optimization.html
Comparisons between constants and column values in which the constant value is out of range or of the wrong type with respect to the column type are now handled once during query optimization rather row-by-row than during execution. The comparisons ...
https://dev.mysql.com/doc/refman/8.0/en/cursors.html
Cursors have these properties: Asensitive: The server may or may not make a copy of its result table Read only: Not updatable Nonscrollable: Can be traversed only in one direction and cannot skip rows Cursor declarations must appear before handler ...
https://dev.mysql.com/doc/refman/8.0/en/exists-and-not-exists-subqueries.html
If a subquery returns any rows at all, EXISTS subquery is TRUE, and NOT EXISTS subquery is FALSE. For example: SELECT column1 FROM t1 WHERE EXISTS (SELECT * FROM t2); Traditionally, an EXISTS subquery starts with SELECT *, but it could begin with ...