https://dev.mysql.com/plugin-loading.html
It is also possible to control the activation state of loaded plugins at startup, and to unload them at runtime. That is, the option produces a one-time plugin-installation operation that persists for a single server invocation. --plugin-load, ...
https://dev.mysql.com/plugin-types.html
The plugin API enables creation of plugins that implement several capabilities: Storage engines Full-text parsers Daemons INFORMATION_SCHEMA tables Semisynchronous replication Auditing Authentication Password validation and strength checking ...
https://dev.mysql.com/precision-math.html
For example, MySQL treats a number such as .0001 as an exact value rather than as an approximation, and summing it 10,000 times produces a result of exactly 1, not a value that is merely “close” to 1. MySQL provides support for precision math: ...
https://dev.mysql.com/privilege-changes.html
Database privilege changes take effect the next time the client executes a USE db_name statement. If the mysqld server is started without the --skip-grant-tables option, it reads all grant table contents into memory during its startup sequence. The ...
https://dev.mysql.com/privileges-provided.html
Privileges also differ in terms of whether they are static (built in to the server) or dynamic (defined at runtime). SUPER affects the following operations and server behaviors: Enables system variable changes at runtime: Enables server ... The ...
https://dev.mysql.com/problems-connecting.html
Otherwise, your changes have no effect until the next time the server is restarted. If you encounter problems when you try to connect to the MySQL server, the following items describe some courses of action you can take to correct the problem. To ...
https://dev.mysql.com/problems-with-null.html
If you insert NULL into a TIMESTAMP column, the current date and time is inserted. The concept of the NULL value is a common source of confusion for newcomers to SQL, who often think that NULL is the same thing as an empty string ''. For example, ...
https://dev.mysql.com/programs-development.html
This works well for programs that use the last instance of an option that is specified multiple times. This section describes some utilities that you may find useful when developing MySQL programs. In shell scripts, you can use the ...
https://dev.mysql.com/proxy-users.html
At connect time, proxy_user must represent a valid externally authenticated MySQL user, and proxied_user must represent a valid locally authenticated user. For example, if a client authenticates through the ''@'' proxy account, this variable is set ...The plugin that authenticates a given connection may request that the connecting (external) user be treated as a different user for privilege-checking ...
https://dev.mysql.com/purge-binary-logs.html
PURGE { BINARY | MASTER } LOGS { TO 'log_name' | BEFORE datetime_expr } The binary log is a set of files that contain information about data modifications made by the MySQL server. Examples: PURGE BINARY LOGS TO 'mysql-bin.010'; PURGE BINARY LOGS ...The log consists of a set of binary log files, plus an index file (see Section 5.4.4, “The Binary ...
