You can set parameters for a stored procedure : Procedure « Procedure Function « MySQL Tutorial

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MySQL Tutorial » Procedure Function » Procedure

11. 5. 2. You can set parameters for a stored procedure


[IN|OUT|INOUT] <name> <data type>

If you don't specify IN, OUT, or INOUT for the parameter, it will default to IN.

An IN parameter is passed into the stored procedure to use internally.

An OUT parameter is set within the procedure, but accessed by the caller.

An INOUT parameter is passed into the procedure for internal use, but is also available to the caller after the procedure has completed.

The name and data type of the parameter are used in the stored procedure for referencing and setting values going in and out of the procedure.

The data type can be any valid data type for MySQL.

11. 5. Procedure
	11. 5. 1.	The CREATE PROCEDURE Statement
	11. 5. 2.	You can set parameters for a stored procedure
	11. 5. 3.	Using an OUT parameter.
	11. 5. 4.	The stored procedure characteristics include a number of options for how the stored procedure behaves.
	11. 5. 5.	Creating a Single-Statement Procedure
	11. 5. 6.	Calling a Single-Statement Procedure
	11. 5. 7.	Creating a Multistatement Stored Procedure
	11. 5. 8.	The ALTER statement lets you change the characteristics of a stored procedure
	11. 5. 9.	To remove a stored procedures, use the DROP statement
	11. 5. 10.	ALTER PROCEDURE and ALTER FUNCTION Syntax
	11. 5. 11.	DROP PROCEDURE and DROP FUNCTION Syntax
	11. 5. 12.	Stored Procedure Permissions

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