Defining the foreign key A mysql prompt has been opened for you.
Using the college database, complete the following tasks (use either a single-line or a multi-line SQL statement):
Create a classrooms table with this definition (try using a multi-line SQL statement):
Field | Type | Null | Key | Default | Extra |

| id | int(3) unsigned | NO | PRI | NULL | auto_increment |
| room_num | int(4) unsigned | NO | UNI | NULL | |
| course_id | int(3) unsigned | YES | MUL | NULL | |