From Sam, 3 Years ago, written in Plain Text.
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  1. mysql> ALTER TABLE `ports_fdb` CHANGE `created_at` `created_at` timestamp NULL ;
  2. ERROR 1054 (42S22): Unknown column 'created_at' in 'ports_fdb'
  3. mysql> describe ports_fdb;
  4. +--------------+---------------------+------+-----+---------+----------------+
  5. | Field        | Type                | Null | Key | Default | Extra          |
  6. +--------------+---------------------+------+-----+---------+----------------+
  7. | ports_fdb_id | bigint(20) unsigned | NO   | PRI | NULL    | auto_increment |
  8. | port_id      | int(10) unsigned    | NO   | MUL | NULL    |                |
  9. | mac_address  | varchar(32)         | NO   | MUL | NULL    |                |
  10. | vlan_id      | int(10) unsigned    | NO   | MUL | NULL    |                |
  11. | device_id    | int(10) unsigned    | NO   | MUL | NULL    |                |
  12. +--------------+---------------------+------+-----+---------+----------------+
  13. 5 rows in set (0.00 sec)
  14.