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SQL and Relational Theory, 3e

SQL and Relational Theory, 3e

SQL and Relational Theory, 3e Paperback / softback - 2015

by C. J. Date

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Paperback / softback. New. SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relational theory, but only if you know how to put that theory into practice. In this book, Chris Date explains relational theory in depth, and demonstrates through numerous examples and exercises how you can apply it to your use of SQL.
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Details

  • Title SQL and Relational Theory, 3e
  • Author C. J. Date
  • Binding Paperback
  • Edition 3th
  • Condition New
  • Pages 581
  • Volumes 1
  • Language ENG
  • Publisher O'Reilly Media
  • Publication date 2015-12-15
  • Features Bibliography, Index
  • Bookseller's Inventory # B9781491941171
  • ISBN 9781491941171 / 1491941170
  • Weight 2.02 lbs (0.92 kg)
  • Dimensions 9.19 x 7 x 1.18 in (23.34 x 17.78 x 3.00 cm)
  • Category Computers - Data Base Management
  • Library of Congress subjects Relational databases, SQL (Computer program language)
  • Dewey Decimal Code 005.756
  • Quantity available 1

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From the publisher

SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relational theory, but only if you know how to put that theory into practice. In this book, Chris Date explains relational theory in depth, and demonstrates through numerous examples and exercises how you can apply it to your use of SQL.

This third edition has been revised, extended, and improved throughout. Topics whose treatment has been expanded include data types and domains, table comparisons, image relations, aggregate operators and summarization, view updating, and subqueries. A special feature of this edition is a new appendix on NoSQL and relational theory.

  • Could you write an SQL query to find employees who have worked at least once in every programming department in the company? And be sure it's correct?
  • Why is proper column naming so important?
  • Nulls in the database cause wrong answers. Why? What you can do about it?
  • How can image relations help you formulate complex SQL queries?
  • SQL supports "quantified comparisons," but they're better avoided. Why? And how?

Database theory and practice have evolved considerably since Codd first defined the relational model, back in 1969. This book draws on decades of experience to present the most up to date treatment of the material available anywhere. Anyone with a modest to advanced background in SQL can benefit from the insights it contains. The book is product independent.

About 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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