Describe the meaning of a Functional Dependency between attributes in a single relation A1 → A2. Use an example such as the Employee relation’s SSN (Social Security Number) and the remaining attributes in the relation. Do not submit SSN as an answer. Provide an example of how functional dependencies are not symmetric i.e. if A1 → A2 it is not necessarily true that A2 → A1.

Describe the meaning of a Functional Dependency between attributes in a single relation A1 → A2. Use an example such as the Employee relation’s SSN (Social Security Number) and the remaining attributes in the relation. Do not submit SSN as an answer. Provide an example of how functional dependencies are not symmetric i.e. if A1 → A2 it is not necessarily true that A2 → A1.

New Perspectives on HTML5, CSS3, and JavaScript

6th Edition

ISBN:9781305503922

Author:Patrick M. Carey

Publisher:Patrick M. Carey

Chapter2: Getting Started With Css: Designing A Website For A Fitness Club

Section2.3: Visual Overview: Pseudo Elements And Classes

Problem 7QC

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