DATABASE SYSTEMS (LOOSELEAF)-W/MINDTAP
DATABASE SYSTEMS (LOOSELEAF)-W/MINDTAP
13th Edition
ISBN: 9781337761833
Author: Coronel
Publisher: CENGAGE L
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Chapter 4, Problem 7P

Explanation of Solution

Entity Relational (ER) Diagram:

The following figure illustrates the ER Diagram for given business rules using Crow’s Foot notation:

Explanation:

The above ERD, contains several entities such as “VOLUNTEER”, “ASSIGNMENT”, “LIST”, “ACTION”, “ITEM”, “PACKAGE_CONTENT” and “PACKAGE”. Each entity has its own attributes.

  • A volunteer can have assignment for several tasks. Similarly, a task can be done by several volunteers. Hence the relationship between the entities “VOLUNTEER” and “ACTION” is M: N...

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