|
mysql>
mysql>
mysql> delimiter $$
mysql> CREATE FUNCTION myFunction(normal_price NUMERIC(8,2))
-> RETURNS NUMERIC(8,2)
-> BEGIN
->
-> DECLARE discount_price NUMERIC(8,2);
->
-> IF (normal_price>500) THEN
-> SET discount_price=normal_price*.8;
-> ELSEIF (normal_price>100) THEN
-> SET discount_price=normal_price*.9;
-> ELSE
-> SET discount_price=normal_price;
-> END IF;
-> RETURN(discount_price);
-> END$$
Query OK, 0 rows affected (0.00 sec)
mysql> delimiter ;
mysql>
mysql> select myFunction(123.123);
+---------------------+
| myFunction(123.123) |
+---------------------+
| 110.81 |
+---------------------+
1 row in set, 2 warnings (0.02 sec)
mysql>
mysql>
mysql> drop function myFunction;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql>
|