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Larry Rockoff - The Language of SQL

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Get Started Fast with SQL!

The only book you need to gain a quick working knowledge of SQL and relational databases.

Many SQL texts attempt to serve as an encyclopedic reference on SQL syntaxan approach that is often counterproductive because that information is readily available in online references published by the major database vendors.

For SQL beginners, its more important for a book to focus on general concepts and to offer clear explanations and examples of what various SQL statements can accomplish. This is that book.

Several features make The Language of SQL unique among introductory SQL books.

First, you will not be required to download software or sit with a computer as you read the text. The intent of this book is to provide examples of SQL usage that can be understood simply by reading.

Second, topics are organized in an intuitive and logical sequence. SQL keywords are introduced one at a time, allowing you to grow your understanding as you encounter new terms and concepts.

Finally, this book covers the syntax of the latest releases of three widely used databases: Microsoft SQL Server 2019, MySQL 8.0, and Oracle 18c. Special Database Differences sidebars clearly show you any differences in syntax among these three databases, and instructions are included on how to obtain and install free versions of the databases.

  • Use SQL to retrieve data from relational databases
  • Apply functions and calculations to data
  • Group and summarize data in a variety of useful ways
  • Use complex logic to retrieve only the data you need
  • Design relational databases so that data retrieval is easy and intuitive
  • Update data and create new tables
  • Use spreadsheets to transform your data into meaningful displays
  • Retrieve data from multiple tables via joins, subqueries, views, and set logic
  • Create, modify, and execute stored procedures
  • Install Microsoft SQL Server, MySQL, or Oracle

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Contents
About This eBook ePUB is an open industry-standard format for eBooks However - photo 1
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The Language
of SQL

Third Edition

Larry Rockoff

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Boston Columbus New York San Francisco Amsterdam Cape Town
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The Language of SQL, Third Edition

Copyright 2022 by Pearson Education, Inc.

All rights reserved. No part of this book shall be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without written permission from the publisher. No patent liability is assumed with respect to the use of the information contained herein. Although every precaution has been taken in the preparation of this book, the publisher and author assume no responsibility for errors or omissions. Nor is any liability assumed for damages resulting from the use of the information contained herein.

ISBN-13: 978-0-13-763269-5

ISBN-10: 0-13-763269-X

Library of Congress Control Number: 2021947847

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Trademarks

All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. The publisher cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark.

Warning and Disclaimer

Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. The information provided is on an as is basis. The author and the publisher shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book.

Special Sales

For information about buying this title in bulk quantities, or for special sales opportunities (which may include electronic versions; custom cover designs; and content particular to your business, training goals, marketing focus, or branding interests), please contact our corporate sales department at or (800) 382-3419.

For government sales inquiries, please contact .

For questions about sales outside the U.S., please contact .

Editor-in-Chief

Mark Taub

Acquisitions Editors

Kim Spenceley, Chelsea Noack

Development Editor

Chris Zahn

Managing Editor

Sandra Schroeder

Senior Project Editor

Tracey Croom

Project and Copy Editor

Dan Foster

Indexer

Valerie Haynes Perry

Proofreader

Scout Festa

Technical Reviewer

Julien Kervizic

Cover Designer

Chuti Prasertsith

Compositor

Danielle Foster

Table of Contents
About the Author

Larry Rockoff has been involved with SQL and business intelligence development for many years. His main area of interest is in using reporting tools to explore and analyze data in complex databases. He holds an MBA from the University of Chicago and a BFA from the University of Illinois.

In addition to writing about SQL, he has also published books on Microsoft Excel and Access. His latest editions of those texts are Exploring Data with Excel 2019 and Exploring Data with Access 2019.

He also maintains a website that features book reviews on technology topics, as well as broader issues regarding technology and society:

larryrockoff.com

Please feel free to visit that site to contact the author with any comments or questions.

Acknowledgments

A huge thanks goes out to all at Pearson who assisted with this book. Id like to thank Kim Spencer, who encouraged me to write a third edition, and Chelsea Noack, who oversaw and guided me through the project, as well as the editors at Pearson who assisted with this project, Tracey Croom, Chris Zahn, and Sandra Schroeder. Id also like to thank project editor and copy editor Dan Foster, who added some grace to my sentences, as well as Julien Kervizic, who did a superb job on the technical review. As with the second edition, Chuti Prasertsith provided a wonderfully vibrant cover design. Finally, I must mention the generally thankless tasks of the books indexer, Valerie Haynes Perry; proofreader, Scout Festa; and compositor, Danielle Foster.

As this is a third edition, Id also like to thank all readers of the first and second editions, and especially those individuals who have contacted me at larryrockoff.com and offered gracious comments as to the usefulness of the book in their personal lives. Its both humbling and thrilling to realize that ones words and musings on a relatively mundane topic can assist someone halfway around the world.

Introduction

Structured Query Language (SQL) is the primary language used to communicate with relational databases. The goal of this book is to serve as a useful introductory guide to this essential language.

In an alternate universe, the title of this book might have been The Logic of SQL. This is because, like all computer languages, the language of SQL has much more to do with cold hard logic than with English vocabulary. Nevertheless, the word language has been retained in the title for several reasons. First, a certain language-based syntax in SQL distinguishes it from other computer languages. Unlike other languages, SQL employs many ordinary words, such as WHERE and FROM, as keywords in its syntax.

In the spirit of the language embedded in SQL, weve adopted an emphasis on language in our sequence of topics. With this book, youll learn SQL as you would learn English. SQL keywords are presented in a logical progression, from simple to more complex. In essence, this is an attempt to deal with language and logic simultaneously.

To learn any language, one must begin by hearing and remembering the words that form the basis of its utterance. At the same time, those words have a certain meaning that must be understood. In the case of SQL, the meaning has a great deal to do with logic.

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