When designing a database,one of the candidate keys in a relation is selected as the ________.
A)composite key
B)primary key
C)foreign key
D)surrogate key
E)dependency

Question

Quizplus · Accepted Answer

The primary key is chosen as the candidate key to uniquely identify each row or record in a relation. It cannot contain NULL values and is used to establish relationships between tables in a database.

When Designing a Database,one of the Candidate Keys in a Relation