The logistics department of a university want to build a database to manage the allocation of student hostels. In need of residential students must complete an application form, the table in the student details and to apply for the type of quarters and the time of introduction. The rooms can only provide a separate room, room with room number, hotel number, and month s rent.

At each new school year, to sign a new rental contract, the minimum rental time for a semester, up to one year.