What primary key characteristics are considered desirable? Explain why each characteristic is considered desirable.
Answer to relevant QuestionsUnder what circumstances are composite primary keys appropriate?What kinds of data would you store in an entity subtype?In Chapter 4, you saw the creation of the Tiny College database design. That design reflected such business rules as “a professor may advise many students” and “a professor may chair one department.” Modify the ...When is a table in 1NF?Define and discuss the concept of transitive dependency.
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