SAP教材之BC400.pdf-资料库

y l n O r e n t r a P P A S e s U l a n r e t n I BC400 Introduction to the ABAP Workbench SAP NetWeaver Date Training Center Instructors Education Website Participant Handbook CourseVersion:2006/Q2 CourseDuration:5Days Material Number: 50078658 An SAP course - use it to learn, reference it for work I n t e r n a l U s e S A P P a r t n e r O n l y

Copyright Copyright ' 2006 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. Trademarks Microsoftﬁ, WINDOWSﬁ, NTﬁ, EXCELﬁ, Wordﬁ, PowerPointﬁ and SQL Serverﬁ are registered trademarks of Microsoft Corporation. IBMﬁ, DB2ﬁ, OS/2ﬁ, DB2/6000ﬁ, Parallel Sysplexﬁ, MVS/ESAﬁ, RS/6000ﬁ, AIXﬁ, S/390ﬁ, AS/400ﬁ, OS/390ﬁ, and OS/400ﬁ are registered trademarks of IBM Corporation. ORACLEﬁ is a registered trademark of ORACLE Corporation. INFORMIXﬁ-OnLine for SAP and INFORMIXﬁ Dynamic ServerTM are registered trademarks of Informix Software Incorporated. UNIXﬁ, X/Openﬁ, OSF/1ﬁ, and Motifﬁ are registered trademarks of the Open Group. Citrixﬁ, the Citrix logo, ICAﬁ, Program Neighborhoodﬁ, MetaFrameﬁ, WinFrameﬁ, VideoFrameﬁ, MultiWinﬁ and other Citrix product names referenced herein are trademarks of Citrix Systems, Inc. HTML, DHTML, XML, XHTML are trademarks or registered trademarks of W3Cﬁ, World Wide Web Consortium, Massachusetts Institute of Technology. JAVAﬁ is a registered trademark of Sun Microsystems, Inc. JAVASCRIPTﬁ 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, 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. Disclaimer THESE MATERIALS ARE PROVIDED BY SAP ON AN "AS IS" BASIS, AND SAP EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, EXPRESS OR APPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THESE MATERIALS AND THE SERVICE, INFORMATION, TEXT, GRAPHICS, LINKS, OR ANY OTHER MATERIALS AND PRODUCTS CONTAINED HEREIN. IN NO EVENT SHALL SAP BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES OF ANY KIND WHATSOEVER, INCLUDING WITHOUT LIMITATION LOST REVENUES OR LOST PROFITS, WHICH MAY RESULT FROM THE USE OF THESE MATERIALS OR INCLUDED SOFTWARE COMPONENTS. y l n O r e n t r a P P A S e s U l a n r e t n I I n t e r n a l U s e S A P P a r t n e r O n l y

y l n O r e n t r a P P A S e s U l a n r e t n I About This Handbook This handbook is intended to complement the instructor-led presentation of this course, and serve as a source of reference. It is not suitable for self-study. Typographic Conventions American English is the standard used in this handbook. The following typographic conventions are also used. Type Style Example text Example text EXAMPLE TEXT Example text Example text Description Words or characters that appear on the screen. These include field names, screen titles, pushbuttons as well as menu names, paths, and options. Also used for cross-references to other documentation both internal (in this documentation) and external (in other locations, such as SAPNet). Emphasized words or phrases in body text, titles of graphics, and tables Names of elements in the system. These include report names, program names, transaction codes, table names, and individual key words of a programming language, when surrounded by body text, for example SELECT and INCLUDE. Screen output. This includes file and directory names and their paths, messages, names of variables and parameters, and passages of the source text of a program. Exact user entry. These are words and characters that you enter in the system exactly as they appear in the documentation. Variable user entry. Pointed brackets indicate that you replace these words and characters with appropriate entries. 2006/Q2 ' 2006 SAP AG. All rights reserved. iii I n t e r n a l U s e S A P P a r t n e r O n l y

y l n O r e n t r a P P A S e s U l a n r e t n I About This Handbook BC400 Icons in Body Text The following icons are used in this handbook. Icon Meaning For more information, tips, or background Note or further explanation of previous point Exception or caution Procedures Indicates that the item is displayed in the instructor’s presentation. iv ' 2006 SAP AG. All rights reserved. 2006/Q2 I n t e r n a l U s e S A P P a r t n e r O n l y

y l n O r e n t r a P P A S e s U l a n r e t n I Contents Course Overview ............................................................................. vii Course Goals.................................................................................vii Course Objectives ...........................................................................vii Unit 1: Flow of an ABAP Program ..........................................................1 System Architecture and ABAP Program Using Example of Selection Screen and List ..........................................................................................2 Unit 2: Introduction to the ABAP Workbench.......................................... 17 Repository and Object Navigator ......................................................... 18 Developing Programs and Organizing Developments ................................. 29 Unit 3: Introduction to the ABAP Dictionary ........................................... 65 Data Modeling and Descriptive Elements in the ABAP Dictionary ................... 66 Unit 4: Basic ABAP Language Elements................................................ 87 Working with Elementary Data Objects.................................................. 88 Working with Structures................................................................... 115 Working with Internal Tables .............................................................128 Unit 5: Data Retrieval .......................................................................159 Reading Database Tables ................................................................160 Authorization Check .......................................................................188 Unit 6: Tools for Program Analysis......................................................207 Runtime Analysis and Code Inspector..................................................208 Unit 7: Subroutines in ABAP .............................................................223 Subroutines.................................................................................224 Unit 8: Introduction to ABAP Events ...................................................247 ABAP Events ...............................................................................248 2006/Q2 ' 2006 SAP AG. All rights reserved. v I n t e r n a l U s e S A P P a r t n e r O n l y

y l n O r e n t r a P P A S e s U l a n r e t n I Contents BC400 Unit 9: User dialogs.........................................................................259 List ...........................................................................................261 Selection Screen...........................................................................283 Screen.......................................................................................303 User Interface ..............................................................................349 ABAP Web Dynpro (Outlook) ............................................................369 Unit 10: Reuse Components ..............................................................385 Working with Function Modules..........................................................386 Working with Methods.....................................................................404 Working with BAPIs .......................................................................424 Unit 11: Adjusting the SAP Standard Software (Overview)........................435 Adjusting the SAP Standard Software (Overview) ....................................436 Index............................................................................................453 vi ' 2006 SAP AG. All rights reserved. 2006/Q2 I n t e r n a l U s e S A P P a r t n e r O n l y

y l n O r e n t r a P P A S e s U l a n r e t n I Course Overview This course introduces you to the ABAP programming language of SAP as well as its development environment, the ABAP Workbench. In both cases, we will be focusing on concepts and fundamental principles. We also introduce the appropriate terminology, so that you will find it easier to understand follow-on documentation. We always handle these topics using practical application examples so that you can immediately implement what you have learned here. Above all, it should become clear how little effort is required to rapidly create high-performance business applications in the ABAP Workbench. We are convinced that this course will enable you to start developing immediately and provide you with the knowledge needed to focus on the essentials in subsequent courses. That is why this course is a prerequisite for more in-depth ABAP Workbench programming courses. Target Audience This course is intended for the following audiences: Project team members ABAP programmers Course Prerequisites Required Knowledge Programming knowledge SAPTEC (SAP NetWeaver Basics of the Application Platform) Course Goals This course will prepare you to: Understand and use basic ABAP syntax elements Implement different types of user dialog Program read accesses to the database Use the ABAP Workbench development tools Understand how developments are organized and transported 2006/Q2 ' 2006 SAP AG. All rights reserved. vii I n t e r n a l U s e S A P P a r t n e r O n l y

y l n O r e n t r a P P A S e s U l a n r e t n I Course Overview BC400 Course Objectives After completing this course, you will be able to: Create an ABAP program containing user dialogs and database accesses Describe the different types of development objects and their typical intended purposes Use appropriate tools to create simple examples of the development objects presented SAP Software Component Information The information in this course pertains to the following SAP Software Components andr eleases: SAP NW AS 7.0 viii ' 2006 SAP AG. All rights reserved. 2006/Q2 I n t e r n a l U s e S A P P a r t n e r O n l y

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