Keys may include all of the following except ________.
A)primary keys
B)unique secondary keys
C)nonunique secondary keys
D)nonunique primary keys

Name: Keys may include all of the following except ________. A)primary keys B)unique secondary keys C)nonunique secondary keys D)nonunique primary keys
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Primary keys must be unique, therefore there can never be nonunique primary keys. Secondary keys can be unique or nonunique. Thus, all options except D are valid types of keys.

Keys May Include All of the Following Except ________