Bundle: Database Systems Design, Implementation, & Management, Loose-leaf Version, 13th + MindTapV2.0, 1 term Printed Access Card
Bundle: Database Systems Design, Implementation, & Management, Loose-leaf Version, 13th + MindTapV2.0, 1 term Printed Access Card
13th Edition
ISBN: 9780357475188
Author: Coronel, Carlos, Morris, Steven
Publisher: Cengage Learning
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Chapter 5, Problem 9C

Explanation of Solution

Crow’s Foot ER diagrams for support the need of business:

The following data model shows the solution for the given question.

Explanation:

  • In the above data model, the “Person” supertype entity contains “Per_No” as primary key. It contain optional “Author” entity and this entity contain “Per_No” is the primary and foreign key.
  • The person has much expertise to work on the particular research and the “Expertise” has “Per_No” and “Int_code” are the primary and foreign keys.
  • The “Interest” entity contains “Int_code” as primary key...

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