The "____" characteristic of a primary key states the following: The PK must uniquely identify each entity instance.A primary key must be able to guarantee unique values.It cannot contain nulls.
A) unique values
B) nonintelligent
C) preferably single-attribute
D) security complaint

Question

Quizplus · Accepted Answer

The "unique values" characteristic of a primary key ensures that each entity instance is uniquely identified and that the primary key cannot contain nulls, thus guaranteeing unique values.

The "____" Characteristic of a Primary Key States the Following