What is a specialization hierarchy?
Answer to relevant QuestionsWhat is an overlapping subtype? Give an example.Under what circumstances are composite primary keys appropriate?List all of the attributes of a movie.The FlyRight Aircraft Maintenance (FRAM) division of the FlyRight Company (FRC) performs all maintenance for FRC’s aircraft. Produce a data model segment that reflects the following business rules:All mechanics are FRC ...Suppose that someone tells you that an attribute that is part of a composite primary key is also a candidate key. How would you respond to that statement?
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