mysql>
mysql> DELIMITER //
mysql>
mysql> CREATE FUNCTION myFunction (rush_ship INT(10)) RETURNS DECIMAL(10,2)
-> BEGIN
->
-> DECLARE rush_shipping_cost DECIMAL(10,2);
->
-> CASE rush_ship
-> WHEN 1 THEN
-> SET rush_shipping_cost = 20.00;
-> WHEN 2 THEN
-> SET rush_shipping_cost = 15.00;
-> WHEN 3 THEN
-> SET rush_shipping_cost = 10.00;
-> ELSE
-> SET rush_shipping_cost = 0.00;
-> END CASE;
->
-> RETURN rush_shipping_cost;
->
-> END
-> //
Query OK, 0 rows affected (0.00 sec)
mysql> DELIMITER ;
mysql>
mysql> select myFunction(1);
+---------------+
| myFunction(1) |
+---------------+
| 20.00 |
+---------------+
1 row in set (0.00 sec)
mysql>
mysql> drop function myFunction;
Query OK, 0 rows affected (0.02 sec)