Which of the following best describes the purpose of a primary key?
A) To ensure that each row in the table is unique
B) To create the relationship between two tables
C) To provide business information, but are not required to build a database
D) To support business processes across the organization

Question

Quizplus · Accepted Answer

A primary key is a column or set of columns in a table that uniquely identifies each row. It is used to ensure that each row in the table is unique and can be used as a reference point for establishing relationships with other tables in the database.

Which of the Following Best Describes the Purpose of a Primary