URGENT Subject: Technology of Large Databases. Define the object type for a projector with attributes: type, inventory number, and cost! Define the object type for a room with the following...

URGENT

Subject: Technology of Large Databases.

Define the object type for a projector with attributes: type, inventory number, and cost!

Define the object type for a room with the following attributes: square footage and room number!

Define subtype for a room! The subtype is ‘auditorium' with attributes: number of seats and information on projector located in it!