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>
mysql> CREATE FUNCTION myFunction1 (item_sum DECIMAL(10,2))
-> RETURNS DECIMAL(10,1)
-> BEGIN
->
-> RETURN myFunction(1);
->
-> END
-> //
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> DELIMITER ;
mysql>
mysql>
mysql> select myFunction1(1);
+----------------+
| myFunction1(1) |
+----------------+
| 20.0 |
+----------------+
1 row in set (0.00 sec)
mysql>
mysql>
mysql> drop function myFunction1;
Query OK, 0 rows affected (0.00 sec)
mysql> drop function myFunction;
Query OK, 0 rows affected (0.00 sec)
mysql>