EBK DATABASE CONCEPTS
EBK DATABASE CONCEPTS
7th Edition
ISBN: 9780133544886
Author: AUER
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Chapter 2, Problem 2.16RQ
Program Plan Intro

Surrogate primary key:

  • A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key.
  • It is deputy of the primary key and will act as a primary key in the database and does not have any other significance.
  • To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.
  • This surrogate key value will never change in the database.

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