A _____ key can be described as a minimal superkey, a superkey without any unnecessary attributes.
A) secondary
B) candidate
C) primary
D) foreign

Question

Quizplus · Accepted Answer

A candidate key is a minimal superkey, which means it is a superkey without any unnecessary attributes. Secondary keys are not relevant to this description. Primary keys are a specific type of candidate key that has been chosen to uniquely identify each row in a table. Foreign keys are used to establish relationships between tables but are not relevant to this description of a key.

A _____ Key Can Be Described as a Minimal Superkey