Database Design and Relational Theory: Normals Forms and All That Jazz

Overview

What makes this book different from others on database design? Many resources on design practice do little to explain the underlying theory, and books on design theory are aimed primarily at theoreticians. In this book, renowned expert Chris Date bridges the gap by introducing design theory in ways practitioners can understand—drawing on lessons learned over four decades of experience to demonstrate why proper database design is so critical in the first place.

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Database Design and Relational Theory: Normal Forms and All That Jazz

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Overview

What makes this book different from others on database design? Many resources on design practice do little to explain the underlying theory, and books on design theory are aimed primarily at theoreticians. In this book, renowned expert Chris Date bridges the gap by introducing design theory in ways practitioners can understand—drawing on lessons learned over four decades of experience to demonstrate why proper database design is so critical in the first place.

Every chapter includes a set of exercises that show how to apply the theoretical ideas in practice, provide additional information, or ask you to prove some simple theoretical result. If you’re a database professional familiar with the relational model, and have more than a passing interest in database design, this book is for you.

Questions this book answers include:

  • Why is Heath’s Theorem so important?
  • What is The Principle of Orthogonal Design?
  • What makes some JDs reducible and others irreducible?
  • Why does dependency preservation matter?
  • Should data redundancy always be avoided? Can it be?

Databases often stay in production for decades, and careful design is critical for avoiding subtle errors and processing problems over time. If they’re badly designed, the negative impacts can be incredibly widespread. This gentle introduction shows you how to use important theoretical results to create good database designs.

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Product Details

  • ISBN-13: 9781449328016
  • Publisher: O'Reilly Media, Incorporated
  • Publication date: 4/24/2012
  • Edition number: 1
  • Pages: 278
  • Sales rank: 1,370,412
  • Product dimensions: 6.90 (w) x 9.10 (h) x 0.80 (d)

Meet the Author

C.J. Date has a stature that is unique within the database industry. C.J. is a prolific writer, and is well-known for his best-selling textbook: An Introduction to Database Systems (Addison Wesley). C.J. is an exceptionally clear-thinking writer who can lay out principles and theory in a way easily understood by his audience.

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Table of Contents

Dedication

Preface

SETTING THE SCENE

Chapter 1: Preliminaries

Chapter 2: Prerequisites

FUNCTIONAL DEPENDENCIES, BOYCE/CODD NORMAL FORM, AND RELATED MATTERS

Chapter 3: Normalization: Some Generalities

Chapter 4: FDs and BCNF (Informal)

Chapter 5: FDs and BCNF (Formal)

Chapter 6: Preserving FDs

Chapter 7: FD Axiomatization

Chapter 8: Denormalization

JOIN DEPENDENCIES, FIFTH NORMAL FORM, AND RELATED MATTERS

Chapter 9: JDs and 5NF (Informal)

Chapter 10: JDs and 5NF (Formal)

Chapter 11: Implicit Dependencies

Chapter 12: MVDs and 4NF

Chapter 13: Additional Normal Forms

ORTHOGONALITY

Chapter 14: The Principle of Orthogonal Design

REDUNDANCY

Chapter 15: We Need More Science

APPENDIXES

Primary Keys Are Nice but Not Essential

Redundancy Revisited

Historical Notes

Answers to Exercises

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