Which of the following statements is not correct?
A. The primary key must be unique for a given table
B. Specifying a zero (0) for the lower bound for the association multiplicity on a class diagram indicates that the item is required
C. Specifying a one (1) for the lower bound for the association multiplicity on a class diagram indicates that the item is required
D. Most databases allow multiple records that are identical
Answer:A
Which of the following statements is not correct?
A. The primary key must be unique for a given table B. Specifying a zero (0) for the lower bound for the association multiplicity on a class diagram indicates that the item is required C. Specifying a one (1) for the lower bound for the association multiplicity on a class diagram indicates that the item is required D. Most databases allow multiple records that are identical