Bc - Abap Programming

Topics: ABAP, SAP AG, SAP R/3 Pages: 954 (212650 words) Published: June 29, 2013
BC - ABAP Programming

Release 4.6C

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BC - ABAP Programming

SAP AG

Copyright
© Copyright 2001 SAP AG. All rights reserved. No part of this publication may be reproduced or transmitted in any form or for any purpose without the express permission of SAP AG. The information contained herein may be changed without prior notice. Some software products marketed by SAP AG and its distributors contain proprietary software components of other software vendors. Microsoft , WINDOWS , NT , EXCEL , Word , PowerPoint and SQL Server are registered trademarks of Microsoft Corporation. IBM , DB2 , OS/2 , DB2/6000 , Parallel Sysplex , MVS/ESA , RS/6000 , AIX , S/390 , ® ® ® AS/400 , OS/390 , and OS/400 are registered trademarks of IBM Corporation. ORACLE is a registered trademark of ORACLE Corporation. INFORMIX -OnLine for SAP and Informix Dynamic Server Informix Software Incorporated. ® ® ® ® ® ® TM ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® ®

are registered trademarks of

UNIX , X/Open , OSF/1 , and Motif are registered trademarks of the Open Group. HTML, DHTML, XML, XHTML are trademarks or registered trademarks of W3C , World Wide Web Consortium, Massachusetts Institute of Technology. JAVA is a registered trademark of Sun Microsystems, Inc. JAVASCRIPT is a registered trademark of Sun Microsystems, Inc., used under license for technology invented and implemented by Netscape. SAP, SAP Logo, R/2, RIVA, R/3, ABAP, SAP ArchiveLink, SAP Business Workflow, WebFlow, SAP EarlyWatch, BAPI, SAPPHIRE, Management Cockpit, mySAP.com Logo and mySAP.com are trademarks or registered trademarks of SAP AG in Germany and in several other countries all over the world. All other products mentioned are trademarks or registered trademarks of their respective companies. ® ® ®

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April 2001

SAP AG

BC - ABAP Programming

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April 2001

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BC - ABAP Programming

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Contents
BC - ABAP Programming.................................................................................17 Introduction to ABAP .................................................................................................................. 19 The R/3 Basis System: Overview............................................................................................... 20 Position of the Basis System Within the R/3 System............................................................... 21 Application Servers .................................................................................................................. 27 Work Processes ....................................................................................................................... 32 Overview of the Components of Application Programs ......................................................... 37 Structure of an Application Program ........................................................................................ 38 Screens .................................................................................................................................... 40 Structure of ABAP Programs ................................................................................................... 44 Processing Blocks in ABAP Programs..................................................................................... 49 ABAP Statements .................................................................................................................... 56 Logical Databases and Contexts ............................................................................................. 60 Memory Structures of an ABAP Program ................................................................................ 66 Creating and Changing ABAP Programs.................................................................................. 68 Opening a Program from the Repository Browser...
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