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Database Systems: Design, Implemen...

11th Edition
Steven + 8 others
ISBN: 9781285196145

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BuyFindarrow_forward

Database Systems: Design, Implemen...

11th Edition
Steven + 8 others
ISBN: 9781285196145
Textbook Problem

What is the minimal data rule in conceptual design? Why is it important?

Program Explanation

Minimal data rule in conceptual design:

  • Minimal data rule in the conceptual design can be defined by the phrase “All that is needed is there and all that is there is needed”.
  • The data that are all needed in the model need to be specified and those data are also required for the model.
  • The elements required for a database transaction needs to be specified, and the elements that are specified needs to be used at least for one database transaction...

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