From all the ____ keys,one is chosen to be the primary key.
A)alternate
B)candidate
C)natural
D)normal

Question

Quizplus · Accepted Answer

In database design, a candidate key is a set of one or more attributes that can uniquely identify a tuple (row) in a relation (table). Therefore, choosing a candidate key as the primary key ensures that each record can be uniquely identified and that there are no duplicate entries. While other types of keys listed may also be used in database design, candidate keys are the most appropriate choice for the primary key.

From All the ____ Keys,one Is Chosen to Be the Primary