A primary key is:
A) required to be unique.
B) used to represent rows in relationships.
C) a candidate key.
D) used to identify unique rows.
E) All of the above

Question

Quizplus · Accepted Answer

All of the above statements are true about a primary key. It must be unique and used to identify unique rows, it represents rows in relationships, and it is a candidate key (meaning it could also be a unique identifier for the table).

A Primary Key Is