6. A rental car agency classifies the vehicles it rents into four categories: compact, midsize, full-size, and sport utility. Th
e agency wants to record the following data for all vehicles: Vehicle_ID, Model, Year, and Color. There are no unique attributes for any of the four classes of vehicle. The entity type vehicle has a relationship (named Rents) with a customer entity type. None of the four vehicle classes has a unique relationship with an entity type. Would you consider creating a class/subclass relationship
A class / subclass relatonship is not going to be possible here.
This is because we have these four caegories namely
1. compact,
2. midsize,
3. full-size, and
4. sport utility
These four categories have no real unique relationship or attributes with an entity type. A minimum of a supertype has atleast one subtype as well as following the total specialization situation.
Lets see, database contains a large portion of information in one area. While you can edit and send information. These are generally used to organize the data inside.
