mysql> describe hands;
+----------+---------+------+-----+---------+----------------+
| Field    | Type    | Null | Key | Default | Extra          |
+----------+---------+------+-----+---------+----------------+
| hid      | int(11) |      | PRI | NULL    | auto_increment |
| tid      | int(11) |      | PRI | 0       |                |
| hand_num | int(11) |      | PRI | 0       |                |
+----------+---------+------+-----+---------+----------------+
3 rows in set (0.00 sec)