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How to declare a variable inside a procedure in MySQL?
You can use the DECLARE command to declare a variable inside a MySQL procedure. Let us create a stored procedure in MySQL −
mysql> DELIMITER // mysql> CREATE PROCEDURE DECLARE_VARIABLE_DEMO(IN value int) -> BEGIN -> DECLARE searchValue int; -> set searchValue=value; -> if searchValue=10 then -> select searchValue+100; -> else -> select searchValue; -> end if; -> END -> // Query OK, 0 rows affected (0.17 sec) mysql> DELIMITER ;
Above, we have declared a variable. Now, let us call the stored procedure using CALL command −
mysql> call DECLARE_VARIABLE_DEMO(10);
This will produce the following output −
+-----------------+ | searchValue+100 | +-----------------+ | 110 | +-----------------+ 1 row in set (0.00 sec) Query OK, 0 rows affected (0.02 sec)
Updated on: 12-Dec-2019
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