Truy vấn INFORMATION_SCHEMA.ROUTINES không lọc ROUTINE_TYPE:
mysql> SELECT ROUTINE_TYPE, ROUTINE_NAME FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_SCHEMA = 'query';
+--------------+--------------+
| ROUTINE_TYPE | ROUTINE_NAME |
+--------------+--------------+
| PROCEDURE | allrecords |
| FUNCTION | Hello |
+--------------+--------------+
2 rows in set (0.04 sec)
Trả về procedure allrecords và function Hello trong database query.