mysql> select fid from file order by fid desc limit 3;
+------------+
| fid |
+------------+
| 4154482087 |
| 4154482086 |
| 4154482085 |
+------------+
3 rows in set (0.05 sec)
mysql> desc file;
+----------+----------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+----------------------+------+-----+---------+-------+
| fid | bigint(20) unsigned | NO | PRI | NULL | |
| dmid | smallint(5) unsigned | NO | MUL | NULL | |
| dkey | varchar(255) | YES | | NULL | |
| length | int(10) unsigned | YES | | NULL | |
| classid | tinyint(3) unsigned | NO | | NULL | |
| devcount | tinyint(3) unsigned | NO | | NULL | |
+----------+----------------------+------+-----+---------+-------+
6 rows in set (0.02 sec)
mysql>
