_____________ can help us detect poor E-R design.
A. Database Design Process
B. E-R Design Process
C. Relational scheme
D. Functional dependencies
Answer:A
_____________ can help us detect poor E-R design.
A. Database Design Process B. E-R Design Process C. Relational scheme D. Functional dependencies
Explanation:For eg.,Suppose an instructor entity set had attributes dept name and dept address, and there is a functional dependency dept name -> dept address. 2. If a multivalued dependency holds and is not implied by the corresponding functional dependency, it usually arises from one of the following sources.