Database Concepts

Published by Pearson
ISBN 10: 0133544621
ISBN 13: 978-0-13354-462-6

Chapter 2 - The Relational Model - Review Questions: 2.14

Answer

Describe four uses of a primary key. A primary key is a way to uniquely identify each row in a table. It is a very important and easy way to reference something in your database. It can be used to uniquely identify a row, to represent the row in foreign key, to organize storage for the relation, and as a basis for indexes and other structures to facilitate searching in storage.

Work Step by Step

N/A
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.