Which of the following is most likely to be a primary key in an "employee" table?
A)Last name
B)Employee ID number
C)Both last name and employee ID number together
D)Either last name or employee ID number separately

Question

Quizplus · Accepted Answer

A primary key uniquely identifies each record in a table. Employees may have the same last name, but they will have different employee ID numbers. Therefore, the employee ID number is the best choice for a primary key in an "employee" table.

Which of the Following Is Most Likely to Be a Primary