mysql>
mysql> delimiter $$
mysql> CREATE PROCEDURE myProc()
-> BEGIN
-> DECLARE my_integer INT; /* 32-bit integer */
->
-> set my_integer = 12;
->
-> select 'my_integer = ' + 12;
-> END$$
Query OK, 0 rows affected (0.00 sec)
mysql> delimiter ;
mysql>
mysql> call myProc();
+----------------------+
| 'my_integer = ' + 12 |
+----------------------+
| 12 |
+----------------------+
1 row in set (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql>
mysql> drop procedure myProc;
Query OK, 0 rows affected (0.00 sec)
mysql>