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https://dev.mysql.com/doc/refman/8.4/en/sys-list-add.html
Adds a value to a comma-separated list of values and returns the result. This function and list_drop() can be useful for manipulating the value of system variables such as sql_mode and optimizer_switch that take a comma-separated list of values.
https://dev.mysql.com/doc/refman/8.4/en/sys-ps-thread-stack.html
Returns a JSON formatted stack of all statements, stages, and events within the Performance Schema for a given thread ID. The value should match the THREAD_ID column from some Performance Schema threads table row. row *************************** ...
https://dev.mysql.com/doc/refman/8.4/en/sys-quote-identifier.html
Given a string argument, this function produces a quoted identifier suitable for inclusion in SQL statements. This is useful when a value to be used as an identifier is a reserved word or contains backtick (`) characters. Example mysql> SELECT ...
https://dev.mysql.com/doc/refman/8.4/en/thread-pool-elements.html
In older versions of MySQL, the monitoring tables were INFORMATION_SCHEMA tables (see Section 28.5, “INFORMATION_SCHEMA Thread Pool Tables”). The INFORMATION_SCHEMA tables are deprecated; expect them to be removed in a future version of MySQL.
https://dev.mysql.com/doc/refman/8.4/en/transport-protocols.html
For programs that use the MySQL client library (for example, mysql and mysqldump), MySQL supports connections to the server based on several transport protocols: TCP/IP, Unix socket file, named pipe, and shared memory. This section describes how to ...
https://dev.mysql.com/doc/refman/8.4/en/tuning-trace-purging.html
Thus, if a statement contains substatements (such as invoking stored procedures, stored functions, or triggers), the topmost statement and substatements each generate one trace, but at the end of execution, the trace for only the last substatement ...
https://dev.mysql.com/doc/refman/8.4/en/using-innodb-tables.html
InnoDB tables are created using the CREATE TABLE statement; for example: CREATE TABLE t1 (a INT, b CHAR (20), PRIMARY KEY (a)) ENGINE=InnoDB; The ENGINE=InnoDB clause is not required when InnoDB is defined as the default storage engine, which it is ...
https://dev.mysql.com/doc/refman/8.4/en/validate-password.html
The validate_password component serves to improve security by requiring account passwords and enabling strength testing of potential passwords. This component exposes system variables that enable you to configure password policy, and status ...
https://dev.mysql.com/doc/refman/8.4/en/view-check-option.html
The WITH CHECK OPTION clause can be given for an updatable view to prevent inserts to rows for which the WHERE clause in the select_statement is not true. It also prevents updates to rows for which the WHERE clause is true but the update would ...
https://dev.mysql.com/doc/refman/8.4/en/window-function-restrictions.html
The SQL standard imposes a constraint on window functions that they cannot be used in UPDATE or DELETE statements to update rows. Using such functions in a subquery of these statements (to select rows) is permitted. MySQL does not support these ...