SQL Out Parameter

SQL Out Parameter allows the stored procedure to the pass data value  back to the invoker.

Understand with Example

The Tutorial illustrate an example from SQL Out Parameter .In this Example we create a procedure 'abc'. The parameter taken into the procedure is OUT parameter. The OUT parameter  allows the stored procedure to pass the value and pass back to the invoker.

Create Procedure

delimiter $$

create procedure abc(OUT x int)
BEGIN 
	SET x = 10;
END$$
delimiter ;

Call Procedure

call abc(@y);

Fetch Value

Select @y;

Result

+------+
| @y   |
+------+
| 10   |
+------+