mysql> USE northwind;
Database changed

mysql> DESCRIBE categories;
+--------------+-------------+------+-----+---------+----------------+
| Field        | Type        | Null | Key | Default | Extra          |
+--------------+-------------+------+-----+---------+----------------+
| CategoryID   | int(11)     | NO   | PRI | NULL    | auto_increment | 
| CategoryName | varchar(15) | NO   | MUL |         |                | 
| Description  | longtext    | YES  |     | NULL    |                | 
| Picture      | longblob    | YES  |     | NULL    |                | 
+--------------+-------------+------+-----+---------+----------------+
4 rows in set (0.01 sec)
