If an employee entity had both an EmployeeID attribute and a Social Security Number attribute, the one that was not used as the primary key would be called a(n):
A) entity key
B) concatenated key
C) alternate key
D) candidate key
E) all of these

Question

Quizplus · Accepted Answer

An alternate key is an attribute or set of attributes that can uniquely identify an entity instance but is not used as the primary key.

If an Employee Entity Had Both an EmployeeID Attribute and a Social