- mysql> delimiter //
- mysql> CREATE PROCEDURE simpleproc (OUT param1 INT)
- -> BEGIN
- -> SELECT COUNT(*) INTO param1 FROM t;
- -> END//
- Query OK, 0 rows affected (0.00 sec)
- mysql> delimiter ;
- mysql> CALL simpleproc(@a);
- Query OK, 0 rows affected (0.00 sec)
- mysql> SELECT @a;
- +------+
- | @a |
- +------+
- | 3 |
- +------+
- 1 row in set (0.00 sec)