mysql>
mysql> delimiter $$
mysql> CREATE PROCEDURE myProc(id int)
-> BEGIN
->
-> CASE
-> WHEN id < 2 THEN
-> select 'less than 2';
->
-> WHEN id > 2 and id < 5 THEN
-> select 'greater than 2 and less than 5';
->
-> WHEN id > 5 THEN
-> select 'greater than 5';
->
-> END CASE;
-> END$$
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> delimiter ;
mysql> call myProc(2);
ERROR 1339 (20000): Case not found for CASE statement
mysql> call myProc(20);
+----------------+
| greater than 5 |
+----------------+
| greater than 5 |
+----------------+
1 row in set (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> drop procedure myProc;
Query OK, 0 rows affected (0.00 sec)
mysql>