Database Concepts (7th Edition)
Database Concepts (7th Edition)
7th Edition
ISBN: 9780133544626
Author: David M. Kroenke, David J. Auer
Publisher: PEARSON
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Chapter 2, Problem 2.35RQ
Program Plan Intro

Functional dependencies:

The functional dependency is a relationship that exists at the time of one attribute distinctively determines another.

Example:

NoOfBoxes → CookieCost

In the above expression, NoOfBoxes attribute determines CookieCost attribute, left term “NoOfBoxes” refers the determinant, and “→” defines the relationship. That is, the CookieCost is functionally dependent on NoOfBoxes. This expression defines the relationship between NoOfBoxes and CookieCost.

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