Copyright

Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and Addison-Wesley, Inc. was aware of a trademark claim, the designations have been printed with initial capital letters or in all capitals.

The authors and publisher have taken care in the preparation of this book, but make no expressed or implied warranty of any kind and assume no responsibility for errors or omissions. No liability is assumed for incidental or consequential damages in connection with or arising out of the use of the information or programs contained herein.

The publisher offers discounts on this book when ordered in quantity for special sales. For more information, please contact:

U.S. Corporate and Government Sales
(800) 382-3419
[email protected]

Visit AW on the Web: www.awprofessional.com

For sales outside the U.S., please contact:

International Sales
(317) 581-3793
[email protected]

Library of Congress Cataloging-in-Publication Data

Bowman, Judith S.
   The practical SQL handbook : using SQL variants / Judith S. Bowman, Sandra L. 
 Emerson, Marcy Darnovsky.--4th ed.
    p. cm.
   Includes bibliographical references and index.
   ISBN 0-201-70309-2 (alk. paper)
    1. SQL (Computer program language) 2. Relational databases I. Emerson, Sandra L., 
1947- II. Darnovsky, Marcy. III. Title.

QA76.73.S67 B688 2001
005.75'6--dc21                                                            2001022698

Copyright © 2001 by Judith S. Bowman, Sandra L. Emerson, and Marcy Darnovsky

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior consent of the publisher. Printed in the United States of America. Published simultaneously in Canada.

Text printed on recycled paper

2 3 4 5 6 7 8 9 10—MA—0706050403

Second printing, February 2003