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https://dev.mysql.com/doc/refman/8.0/en/user-variables.html
You can store a value in a user-defined variable in one statement and refer to it later in another statement. This enables you to pass values from one statement to another. User variables are written as @var_name, where the variable name var_name ...
https://dev.mysql.com/doc/refman/8.0/en/using-system-variables.html
For example, the log_filter_dragnet error log filter component implements a system variable named log_error_filter_rules, the full name of which is dragnet.log_error_filter_rules. The MySQL server maintains many system variables that configure its ...
https://dev.mysql.com/doc/refman/8.0/en/values.html
The DEFAULT keyword is not supported by VALUES and causes a syntax error, except when it is used to supply values in an INSERT statement. VALUES is a DML statement introduced in MySQL 8.0.19 which returns a set of one or more rows as a table. In ...
https://dev.mysql.com/doc/refman/8.0/en/version-tokens.html
An SQL statement sent by the application to a server not in the required state produces an error. MySQL includes Version Tokens, a feature that enables creation of and synchronization around server tokens that applications can use to prevent ...
https://dev.mysql.com/doc/refman/8.0/en/what-is-crashing.html
Use the “copy and paste” method for any output and error messages from programs and log files. This can normally be checked by pressing the Caps Lock key. If the Caps Lock light does not change, you have to replace your keyboard. (Before doing ...
https://dev.mysql.com/doc/refman/8.0/en/window-functions-named-windows.html
Windows can be defined and given names by which to refer to them in OVER clauses. If present in a query, the WINDOW clause falls between the positions of the HAVING and ORDER BY clauses, and has this syntax: WINDOW window_name AS (window_spec) [, ...
https://dev.mysql.com/doc/refman/8.0/en/windows-installation-layout.html
include Include (header) files lib Libraries share Miscellaneous support files, including error messages, character set files, sample configuration files, SQL for database installation Silent Installation Methods Use MySQL Installer, see Section ...
https://dev.mysql.com/doc/refman/8.0/en/windows-pluggable-authentication.html
For example: mysql> SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE '%windows%'; +------------------------+---------------+ | PLUGIN_NAME | PLUGIN_STATUS | +------------------------+---------------+ | ...
https://dev.mysql.com/doc/refman/8.0/en/windows-postinstallation.html
For example, the program may fail with an error, or you may not be able to view all databases. GUI tools exist that perform most of the tasks described in this section, including: MySQL Installer: Used to install and upgrade MySQL products. If ...
https://dev.mysql.com/doc/refman/8.0/en/windows-upgrading.html
If you encounter errors, see Section 2.3.5, “Troubleshooting a Microsoft Windows MySQL Server Installation”. There are two approaches for upgrading MySQL on Windows: Using MySQL Installer Using the Windows ZIP archive distribution The approach ...