Horst Keller - The Official ABAP Reference
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Get to know ABAP in all its intricacy and detail with this, your comprehensive reference for all ABAP statements. Each chapter discusses the relevant keywords for the topic at hand, and begins with an introduction that explains the essential concepts, such as character string processing, dynpro development, and more. For each statement, the book offers an explanation of the function, the syntax listing, a description, notes on special usage, and an example. The clear organization of content, a full index, and the comprehensive glossary will help you navigate through the complexities of ABAP with ease.
1. Comprehensive Discussion of Keywords Learn about every language construct that you may encounter in dealing with ABAP programs, whether it is brand new or obsolete.
2. Syntax Diagrams Explore syntax diagrams for each statement that show you all your options at a glance.
3. Practical Examples Expand your knowledge with the various example programs that give you a feel for the surrounding structure of a program statement.
4. Icons for New Concepts Easily identify new content and statements via icons throughout the text.
5. ABAP Glossary Browse a unique glossary of almost 1,000 entries, which explains all programming concepts from A to Z.
Highlights:
- Extended expression handling
- Pragmas
- Internal tables
- Unicode extension
- Obsolete language elements
- Conversion rules
- Allocations
- ABAP and XML
- Exceptions
- Glossary
Horst Keller: author's other books
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In AS ABAP 7.3, which is part of the recent standalone release of SAP NetWeaver 7.3, there have been no enhancements to ABAP. Therefore, the description provided for Release 7.2 still applies, and 7.2 and 7.3 can be regarded as synonyms in this book. Any ABAP enhancements since Release 7.2 are contained in another release that is currently only available for internal SAP developments.
Copyright IBM Corporation 2001, 2004. All rights reserved.
Outside of classes, an obsolete type reference is also possible using LIKE (see ).
Secondary keys can be created with the same meaning for internal table types in the ABAP Dictionary too.
Copyright 1998-2004 Dr. John Maddock.
Explicit generation with the EMPTY KEY addition of the statements TYPES, DATA, and so on, will also be possible in a future release.
The same applies to the definition of internal table types in the ABAP Dictionary.
This e-book is a publication many contributed to, specifically:
Editor Florian Zimniak
English Edition Editor Kelly Grace Harris
Translation Lemoine International, Inc., Salt Lake City, UT
Copyeditor Julie McNamee
Cover Design Daniel Kratzke, Graham Geary
Photo Credit zefa visual media
Production E-Book Graham Geary
Typesetting E-Book SatzPro, Krefeld (Germany)
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The Library of Congress has cataloged the printed edition as follows:
Keller, Horst, 1960
[ABAP-Referenz. English]
The official ABAP reference / Horst Keller. -- 3rd ed.
p. cm.
ISBN-13: 978-1-59229-376-6
ISBN-10: 1-59229-376-X
1. ABAP/4 (Computer program language) I. Title.
QA76.73.A12K46413 2011
005.133--dc22
2011010872
ISBN 978-1-59229-376-6 (print)
ISBN 978-1-59229-757-3 (e-book)
ISBN 978-1-59229-758-0 (print and e-book)
2012 by Galileo Press Inc., Boston (MA)
3rd edition 2012
This e-book is protected by copyright . By purchasing this e-book, you have agreed to accept and adhere to the copyrights. You are entitled to use this e-book for personal purposes. You may print and copy it, too, but also only for personal use. Sharing an electronic or printed copy with others, however, is not permitted, neither as a whole nor in parts. Of course, making them available on the Internet or in a company network is illegal as well.
For detailed and legally binding usage conditions, please refer to the section .
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I have heard The Official ABAP Reference called many things by many people, but my favorite term thus far has been the ABAP bible. Truly, this is what you hold in your hands. Within these pages, you will find a comprehensive explanation of all ABAP statements: their function, syntax listing in pseudo code, a description, notes on special usage, and examples. It is everything you need to know about ABAP statements, organized in a way that is intuitive and easy to reference.
In my line of work, a well-written, well-structured manuscript is something that makes your eyes water a little. Frankly, I wasnt sure Id ever find an author who cared as much as his editor about the thorough and methodical treatment of a topicuntil I met Horst Keller. I think its safe to say that he put as much work into the translation of this book as he did into the original, and both you and I are the lucky benefiters of his dedication and attention to detail.
Around our office, The Official ABAP Reference is sometimes also called a masterpiece. Ill tell you the truth: there are moments when I think this might not be an exaggeration. I hope you agree.
We appreciate your business, and welcome your feedback. Your comments and suggestions are the most useful tools to help us improve our books for you, the reader. We encourage you to visit our website at www.sap-press.com and share your feedback about this work.
Thank you for purchasing a book from SAP PRESS!
Kelly Grace Harris
Editor, SAP PRESS
Galileo Press
Boston, MA
www.sap-press.com
This book is the latest edition of The Offical ABAP Reference . It provides a complete description of SAP's proprietary programming language, ABAP. In comparison to the last edition, which described ABAP for Release 6.40, this version discusses ABAP up to and including Release 7.2, and therefore contains many revisions and lots of additional information.
But why was there a need for a new ABAP reference book? Even though the content is available not only in the online help for the system but also on the Internet, the oft-quoted Goethe comes to mind: For what one has in black and white, one can carry home in comfort. Readers' comments in relation to earlier editions (for example, I can highlight sections of the book , I have everything I need at a glance or I can find everything I need ) were also the motivation behind the book format used in this current edition. When it comes to a highly comprehensive language such as ABAP, there is very much a need for a reference book.
Even though all of the content is available online, that doesn't necessarily mean that it will always be found. The ABAP hotline is receiving more and more requests and error messages that could be resolved by simply referring to the documentation. But why are developers unable to find this information themselves? My personal belief is that online content is only read occasionally, generally in an emergency, and the reader cannot browse the content as easily as he or she could in a book. Even though all of the required content is available in the online help, and generally at the click of a mouse, the likelihood that a person browsing content will remain at sections of interest to him or her is simply greater when referencing a well-formatted book. Moreover, thanks to the compact nature of the book format, the reader is also better able to identify key interrelationships.
The following is a real-life example of a popular hotline message: The statement SORT itab is not working. Of course, the SORT statement works exactly as it is described in the documentation. Most of the time, developers also know that the SORT statement sorts according to the primary table key without having to explicitly specify the sort key. However, they may not know that the primary table key can be the standard key and that, in the case of standard tables, this key may not contain any key fields. As already mentioned, all of this information is available in the documentation. However, something seems to prevent readers from following the references to descriptions for keys in the
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