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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/channels-startup-options.html
This section describes startup options which are impacted by the addition of replication channels. The master_info_repository and relay_log_info_repository system variables must not be set to FILE when you use replication channels. In MySQL 8.0, ...
https://dev.mysql.com/doc/refman/8.0/en/charset-collation-effect.html
latin1_swedish_ci latin1_german1_ci latin1_german2_ci Muffler Muffler Müller MX Systems Müller Muffler Müller MX Systems MX Systems MySQL MySQL MySQL The character that causes the different sort orders in this example is ü (German ...
https://dev.mysql.com/doc/refman/8.0/en/charset-collation-information-schema.html
String columns in INFORMATION_SCHEMA tables have a collation of utf8mb3_general_ci, which is case-insensitive. However, for values that correspond to objects that are represented in the file system, such as databases and tables, searches in ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-failure-handling.html
This section describes failure handing at different stages of a cloning operation. If a failure occurs during the prerequisite check, the CLONE INSTANCE operation reports an error. Prior to MySQL 8.0.27, a backup lock on the donor and recipient ...
https://dev.mysql.com/doc/refman/8.0/en/comments.html
MySQL Server supports three comment styles: From a # character to the end of the line. In MySQL, the -- (double-dash) comment style requires the second dash to be followed by at least one whitespace or control character, such as a space or tab.
https://dev.mysql.com/doc/refman/8.0/en/connecting-using-uri-or-key-value-pairs.html
This section describes use of URI-like connection strings or key-value pairs to specify how to establish connections to the MySQL server, for clients such as MySQL Shell. For information on establishing connections using command-line options, for ...
https://dev.mysql.com/doc/refman/8.0/en/connection-access.html
When you attempt to connect to a MySQL server, the server accepts or rejects the connection based on these conditions: Your identity and whether you can verify it by supplying the proper credentials. A failure at either step causes the server to ...
https://dev.mysql.com/doc/refman/8.0/en/connection-control-plugin-installation.html
This section describes how to install the connection control plugins, CONNECTION_CONTROL and CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS. For general information about installing plugins, see Section 7.6.1, “Installing and Uninstalling Plugins”.
https://dev.mysql.com/doc/refman/8.0/en/controlling-query-plan-evaluation.html
The task of the query optimizer is to find an optimal plan for executing an SQL query. Because the difference in performance between “good” and “bad” plans can be orders of magnitude (that is, seconds versus hours or even days), most query ...