Database In Depth: Relational Theory For Practitioners

Database In Depth: Relational Theory For Practitioners (Paperback)

By C J Date 
Publisher: O'Reilly
Edition: Paperback
Language: English
ISBN: 8173667802
EAN: 9788173667800
No. of Pages: 250
Publish Date: 2005-1-1
Binding: Paperback
Ships to India.


About the Book :

This book sheds light on the principles behind the relational model, which is fundamental to all database-backed applications--and, consequently, most of the work that goes on in the computing world today. Database in Depth: The Relational Model for Practitioners goes beyond the hype and gets to the heart of how relational databases actually work.

Ideal for experienced database developers and designers, this concise guide gives you a clear view of the technology--a view that's not influenced by any vendor or product. Featuring an extensive set of exercises, it will help you:

  •     understand why and how the relational model is still directly relevant to modern database technology (and will remain so for the foreseeable future)
  •     see why and how the SQL standard is seriously deficient
  •     use the best current theoretical knowledge in the design of their databases and database applications
  •     make informed decisions in their daily database professional activities.

Database in Depth will appeal not only to database developers and designers, but also to a diverse field of professionals and academics, including database administrators (DBAs), information modelers, database consultants, and more. Virtually everyone who deals with relational databases should have at least a passing understanding of the fundamentals of working with relational models. Author C.J. Date has been involved with the relational model from its earliest days. An exceptionally clear-thinking writer, Date lays out principle and theory in a manner that is easily understood. Few others can speak as authoritatively the topic of relational databases as Date can.

About the Author :

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

Contents :

Chapter One Introduction

    A Remark on Terminology
    Principles, Not Products
    A Review of the Original Model
    Model Versus Implementation
    Properties of Relations
    Relations Versus Relvars
    Values Versus Variables

Chapter Two Relations Versus Types

    Domain-Constrained Comparisons
    Data Value Atomicity
    So What's a Type?
    Scalar Versus Nonscalar Types

Chapter Three Tuples and Relations

    What's a Tuple?
    Some Important Consequences
    What's a Relation?
    Further Important Consequences
    Why Duplicate Tuples Are Prohibited
    Why Nulls Are Prohibited

Chapter Four Relation Variables

    Updating Is Set-at-a-Time
    More on Candidate Keys
    More on Foreign Keys
    More on Views
    Relvars and Predicates
    More on Relations Versus Types

Chapter Five Relational Algebra

    More on Closure
    The Original Operators
    Evaluating SQL Expressions
    Extend and Summarize
    Group and Ungroup
    Expression Transformation
    Relational Comparisons
    More on Relational Assignment
    The ORDER BY Operator

Chapter Six Integrity Constraints

    Type Constraints
    Database Constraints
    Why Database Constraint Checking Must Be Immediate
    But Doesn't Some Checking Have to Be Deferred?
    Constraints and Predicates
    Miscellaneous Issues

Chapter Seven Database Design Theory

    The Place of Design Theory
    Functional Dependencies and Boyce/Codd Normal Form
    Join Dependencies and Fifth Normal Form
    Two Cheers for Normalization
    Some Remarks on Physical Design

Chapter Eight What Is the Relational Model?

    The Relational Model Defined
    Objectives of the Relational Model
    Some Database Principles
    The Relational Model Versus Others
    What Remains to Be Done?

Appendix A A Little Bit of Logic

    Free and Bound Variables
    More on Quantification
    Database Constraints
    Some Equivalences

Appendix Suggestions for Further Reading

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Title: Database In Depth: Relational Theory For Practitioners
Publisher: O'Reilly
Author: C J Date
Edition: Paperback
Language: English
ISBN: 8173667802
EAN: 9788173667800
No. of Pages: 250
Publish Date: 2005-1-1
Binding: Paperback


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