MySQL If statement with multiple conditions?

You can use if statement in a stored procedure with multiple conditions with the help of AND or OR operator. The syntax is as follows −

DECLARE X int;
DECLARE Y int;
SET X = value1;
SET Y = value2;
IF ( (X < Y AND X > value1 AND Y >value2) OR X! = anyValueToCompare) THEN
   yourStatement;
ELSE
   yourStatement;
END IF

Now to understand the above syntax, let us create a stored procedure. The query to create a stored procedure is as follows −

mysql> create procedure SP_IFELSEDEMO()
   -> BEGIN
   -> DECLARE X int;
   -> DECLARE Y int;
   -> SET X=100;
   -> SET Y=400;
   -> IF ( (X < Y AND X > 99 AND Y >300) OR X! = 10 ) THEN
   ->    SELECT 'Logic is Correct';
   -> ELSE
   ->    SELECT 'Logic is not Correct';
   -> END IF;
   -> END;
   -> //
Query OK, 0 rows affected (0.27 sec)
mysql> DELIMITER ;

Now call the stored procedure with the help of the CALL command. The query is as follows −

mysql> call SP_IF ELSEDEMO();

Output

+------------------+
| Logic is Correct |
+------------------+
| Logic is Correct |
+------------------+
1 row in set (0.04 sec)
Query OK, 0 rows affected (0.07 sec)

Samual Sam

Published on 19-Mar-2019 06:36:18

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