Identify the attribute below that would not make a good primary key.
A)Adjusted gross income.
B)Social security number.
C)A unique number automatically generated by the system.
D)Cell phone number.

Question

Quizplus · Accepted Answer

Adjusted gross income would not make a good primary key because it is not guaranteed to be unique for each individual and can change over time, violating the uniqueness and immutability requirements of a primary key.

Identify the Attribute Below That Would Not Make a Good