What does a primary key do?
A)Identifies each row of a table.
B)Selects a number of rows from a database.
C)Stores a bunch of related data.
D)None of the above.

Question

Quizplus · Accepted Answer

A primary key is a unique identifier for each row in a table. It ensures that each row can be easily located and accessed. This is essential for maintaining the integrity and organization of a database. The other options are not related to the purpose of a primary key.

What Does a Primary Key Do