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https://dev.mysql.com/doc/refman/8.0/en/stored-objects-security.html
Stored programs (procedures, functions, triggers, and events) and views are defined prior to use and, when referenced, execute within a security context that determines their privileges. The privileges applicable to execution of a stored object are ...
https://dev.mysql.com/doc/refman/8.0/en/stored-programs-logging.html
The binary log contains information about SQL statements that modify database contents. This information is stored in the form of “events” that describe the modifications. (Binary log events differ from scheduled event stored objects.) The ...
https://dev.mysql.com/doc/refman/8.0/en/string-functions.html
For functions that operate on string positions, the first position is numbered 1. For functions that take length arguments, noninteger arguments are rounded to the nearest integer. ASCII(str) Returns the numeric value of the leftmost character of ...
https://dev.mysql.com/doc/refman/8.0/en/sys-ps-setup-show-disabled-instruments.html
Displays all currently disabled Performance Schema instruments. This might be a long list. Parameters None. Example mysql> CALL sys.ps_setup_show_disabled_instruments()\G *************************** 1. row *************************** ...
https://dev.mysql.com/doc/refman/8.0/en/sys-ps-setup-show-enabled-instruments.html
Displays all currently enabled Performance Schema instruments. This might be a long list. Parameters None. Example mysql> CALL sys.ps_setup_show_enabled_instruments()\G *************************** 1. row *************************** ...
https://dev.mysql.com/doc/refman/8.0/en/sys-statements-with-errors-or-warnings.html
These views display normalized statements that have produced errors or warnings. By default, rows are sorted by descending error and warning counts. The statements_with_errors_or_warnings and x$statements_with_errors_or_warnings views have these ...
https://dev.mysql.com/doc/refman/8.0/en/thread-pool-information-schema-tables.html
Note As of MySQL 8.0.14, the INFORMATION_SCHEMA thread pool tables are also available as Performance Schema tables. (See Section 29.12.16, “Performance Schema Thread Pool Tables”.) The INFORMATION_SCHEMA tables are deprecated; expect them be ...
https://dev.mysql.com/doc/refman/8.0/en/type-conversion.html
When an operator is used with operands of different types, type conversion occurs to make the operands compatible. For example, MySQL automatically converts strings to numbers as necessary, and vice versa. mysql> SELECT 1+'1'; -> 2 mysql> SELECT ...
https://dev.mysql.com/doc/refman/8.0/en/upgrade-prerequisites.html
Before upgrading to the latest MySQL 8.0 release, ensure the upgrade readiness of your current MySQL 5.7 or MySQL 8.0 server instance by performing the preliminary checks described below. Tip Consider using the MySQL Shell upgrade checker utility ...
https://dev.mysql.com/doc/refman/8.0/en/alter-database.html
alter_option: { [DEFAULT] CHARACTER SET [=] charset_name | [DEFAULT] COLLATE [=] collation_name | [DEFAULT] ENCRYPTION [=] {'Y' | 'N'} | READ ONLY [=] {DEFAULT | 0 | 1} } ALTER DATABASE enables you to change the overall characteristics of a database. If the database name is omitted, the statement applies to the default ...