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https://dev.mysql.com/doc/refman/8.0/en/time.html
MySQL retrieves and displays TIME values in 'hh:mm:ss' format (or 'hhh:mm:ss' format for large hours values). The hours part may be so large because the TIME type can be used not only to represent a time of day (which must be less than 24 hours), ...
https://dev.mysql.com/doc/refman/8.0/en/trigger-syntax.html
To create a trigger or drop a trigger, use the CREATE TRIGGER or DROP TRIGGER statement, described in Section 15.1.22, “CREATE TRIGGER Statement”, and Section 15.1.34, “DROP TRIGGER Statement”. Here is a simple example that associates a ...
https://dev.mysql.com/doc/refman/8.0/en/window-function-optimization.html
Window functions affect the strategies the optimizer considers: Derived table merging for a subquery is disabled if the subquery has window functions. Semijoins are not applicable to window function optimization because semijoins apply to ...
https://dev.mysql.com/doc/refman/8.0/en/kerberos-pluggable-authentication.html
Note Kerberos pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition supports an authentication method that enables users to authenticate to MySQL Server using Kerberos, ...
https://dev.mysql.com/doc/refman/8.0/en/manual-info.html
This is the Reference Manual for the MySQL Database System, version 8.0, through release 8.0.43. Differences between minor versions of MySQL 8.0 are noted in the present text with reference to release numbers (8.0.x). This manual is not intended ...
https://dev.mysql.com/doc/refman/8.0/en/source-installation-doxygen.html
The MySQL source code contains internal documentation written using Doxygen. It is also possible to generate this content locally from a MySQL source distribution using the following procedure: Install doxygen 1.9.2 or later. After installing ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-cjk.html
This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) issues. What problems should I be aware of when working with the Big5 ...
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/ibd2sdi.html
ibd2sdi is a utility for extracting serialized dictionary information (SDI) from InnoDB tablespace files. ibd2sdi can be run on file-per-table tablespace files (*.ibd files), general tablespace files (*.ibd files), system tablespace files (ibdata* ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-hashicorp-plugin.html
Note The keyring_hashicorp plugin is an extension included in MySQL Enterprise Edition, a commercial product. The keyring_hashicorp keyring plugin communicates with HashiCorp Vault for back end storage. No key information is permanently stored in ...