Which of the following is a good example of a primary key?
A) last name
B) bank account number
C) city
D) street address

Question

Quizplus · Accepted Answer

A primary key is a unique identifier for a record in a database table. Bank account numbers are typically unique for each person, making them a good example of a primary key. Last names, cities, and street addresses are not necessarily unique and can lead to data duplication and errors if used as primary keys.

Which of the Following Is a Good Example of a Primary