Database Systems: Design, Implementation, Management, Loose-leaf Version
Database Systems: Design, Implementation, Management, Loose-leaf Version
12th Edition
ISBN: 9781305866799
Author: Coronel, Carlos; Morris, Steven
Publisher: Course Technology
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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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