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https://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
The MySQL server has many operating parameters, which you can change at server startup using command-line options or configuration files (option files). For general instructions on setting parameters at startup or runtime, see Section 5.1.6, ...
https://dev.mysql.com/doc/refman/5.7/en/session-state-tracking.html
A client can enable these trackers to receive notification of changes to its session state. Uses for Session State Trackers Available Session State Trackers C API Session State Tracker Support Test Suite Session State Tracker Support Uses for ...
https://dev.mysql.com/doc/refman/5.7/en/set-transaction.html
transaction_characteristic: { ISOLATION LEVEL level | access_mode } level: { REPEATABLE READ | READ COMMITTED | READ UNCOMMITTED | SERIALIZABLE } access_mode: { READ WRITE | READ ONLY } This statement specifies transaction characteristics. It takes ...
https://dev.mysql.com/doc/refman/5.7/en/setting-environment-variables.html
Environment variables can be set at the command prompt to affect the current invocation of your command processor, or set permanently to affect future invocations. To set a variable permanently, you can set it in a startup file or by using the ...
https://dev.mysql.com/doc/refman/5.7/en/show-events.html
SHOW EVENTS [{FROM | IN} schema_name] [LIKE 'pattern' | WHERE expr] This statement displays information about Event Manager events, which are discussed in Section 23.4, “Using the Event Scheduler”. It requires the EVENT privilege for the ...
https://dev.mysql.com/doc/refman/5.7/en/stored-objects.html
This chapter discusses stored database objects that are defined in terms of SQL code that is stored on the server for later execution. Stored objects include these object types: Stored procedure: An object created with CREATE PROCEDURE and invoked ...
https://dev.mysql.com/doc/refman/5.7/en/stored-programs-defining.html
Each stored program contains a body that consists of an SQL statement. This statement may be a compound statement made up of several statements separated by semicolon (;) characters. For example, the following stored procedure has a body made up of ...
https://dev.mysql.com/doc/refman/5.7/en/stored-routines-syntax.html
A stored routine is either a procedure or a function. Stored routines are created with the CREATE PROCEDURE and CREATE FUNCTION statements (see Section 13.1.16, “CREATE PROCEDURE and CREATE FUNCTION Statements”). A procedure is invoked using a ...
https://dev.mysql.com/doc/refman/5.7/en/string-functions-charset.html
MySQL has many operators and functions that return a string. This section answers the question: What is the character set and collation of such a string? For simple functions that take string input and return a string result as output, the output's ...
https://dev.mysql.com/doc/refman/5.7/en/sys-metrics.html
This view summarizes MySQL server metrics to show variable names, values, types, and whether they are enabled. The metric type determines the source from which the name is taken: For global status variables: The VARIABLE_NAME column of the ...