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首页英文版电子书SAP ABAP Hands-On Test Projects with Business
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Markandeya
Roy
US $69.99
Shelve in
Software Engineering/Object-Oriented Programming
User level:
Intermediate–Advanced
www.apress.com
SOURCE CODE ONLINE
BOOKS FOR PROFESSIONALS BY PROFESSIONALS
®
SAP ABAP
SAP ABAP (Advanced Business Application Programming) elucidates the numerous
features of the core programming platform, which is used for development for the
entire SAP software suite. SAP ABAP uses numerous hands on business oriented
use cases and a valuable dedicated e-resource to demonstrate the underlying
advanced concepts of the OO ABAP environment and the SAP UI. SAP ABAP covers
the latest version (NetWeaver 7.3 and SAP application programming release 6.0) of
the platform for demonstrating the customization and implementation phases of the
SAP software implementation.
Shorn of weighty theoretical treatment and preoccupation with language syntax,
SAP ABAP is a comprehensive, practical one stop solution,which demonstrates and
conveys the language’s commands and features through hands on examples. The
accompanying e-resource is a take off point to the book.
SAP ABAP works in tandem with the accompanying, completely optional,
e-resource to create an interactive learning environment where the book provides
a brief description and an overview of a specified feature/command followed by
the user switching over to the accompanying e-resource, where a step-by-step
guide to creating and running the feature’s object is available.
The presentation of the features is scenario oriented, i.e. most of the features are
demonstrated in terms of small business scenarios. The e-resource contains the
scenario descriptions, screen shots, detailed screen cams and ABAP program source
to enable the reader to create all objects related to the scenario and run/execute them.
The underlying concepts of a feature/command are conveyed through execution
of these hands-on programs. Further exercises to be performed independently by the
reader are also proposed.
RELATED
9781430 248033
56999
ISBN 978-1-4302-4803-3
For your convenience Apress has placed some of the front
matter material after the index. Please use the Bookmarks
and Contents at a Glance links to access them.
v
Contents at a Glance
About the Authors ������������������������������������������������������������������������������������������������������������� xxv
About the Technical Reviewer ���������������������������������������������������������������������������������������� xxvii
Acknowledgments ����������������������������������������������������������������������������������������������������������� xxix
Introduction ��������������������������������������������������������������������������������������������������������������������� xxxi
Chapter 1: ERP and SAP Overview ■ �������������������������������������������������������������������������������������1
Chapter 2: ABAP Dictionary/Data Dictionary/DDIC – 1 ■ ����������������������������������������������������21
Chapter 3: ABAP Dictionary/Data Dictionary/DDIC – 2 ■ ����������������������������������������������������81
Chapter 4: ABAP Language Basics ■ ��������������������������������������������������������������������������������141
Chapter 5: WRITE Statement (Classical Reporting) ■ �������������������������������������������������������197
Chapter 6: Internal Tables ■ ���������������������������������������������������������������������������������������������245
Chapter 7: Modularization ■ ���������������������������������������������������������������������������������������������323
Chapter 8: Open SQL Data Retrieval ■ ������������������������������������������������������������������������������391
Chapter 9: SELECTION-SCREENS ■ ������������������������������������������������������������������������������������447
Chapter 10: Interactive Lists ■ �����������������������������������������������������������������������������������������513
Chapter 11: ABAP OOP ■ ���������������������������������������������������������������������������������������������������575
Chapter 12: ABAP List Viewer Outputs—Part 1 ■ �������������������������������������������������������������647
Chapter 13: ABAP List Viewer Output—Part 2 ■ ��������������������������������������������������������������707
Chapter 14: Screen Programming ■ ���������������������������������������������������������������������������������735
Appendix A: Description of the SAP-Delivered Tables Used in the Hands-On Exercises ■ ����� 829
Index ���������������������������������������������������������������������������������������������������������������������������������845
xxxi
Introduction
ABAP (Advanced Business Application Programming) is the programming language and the platform on which the
entire SAP software has been developed. Originally, a procedure oriented language, OOP constructs and features were
added to it more than a decade back. ough, its core constructs remain the same, it underwent many enhancements
over the last decade. e ABAP platform is used during both the customization and implementation phases of the SAP
software in the enterprise.
Target Audience
e book addresses people who want to learn ABAP afresh and people working with ABAP for a few years (0-4 years).
People with experience in ABAP will nd this book useful as a reference for hands-on examples, from the context of
doing meaningful things.
Target Audience Pre-requisites
e target audience must have a fair exposure to OOP language/s like C++, Java, etc. ey must be exposed to the
basic features of OOP including encapsulation, inheritance, polymorphism, etc.
ey must also have a good exposure to RDBMS basics like RDBMS tables, table columns, relationships, primary
key, foreign key, cardinality, entity, attribute and table metadata. An exposure to RDBMS SQL, especially the data
retrieval statement, is required.
Book’s Approach
e whole of the book’s thrust is on the doing something meaningful part: to be able to create programs and objects
required as per a dened context or scenario.
e book uses a scenario oriented presentation style. Concepts, commands and statements are communicated
through illustrative examples and scenarios. Wherever possible, small business scenarios are used to communicate
concepts, commands and statements.
Shorn of weighty theoretical treatment and preoccupations with language syntax, the book is a completely
practical approach, demonstrating and conveying the language’s commands, features through hands-on examples.
Denitions, descriptions, syntax, etc. are introduced even as you set about implementing a scenario.
e presentation of the features is scenario oriented: most of the features are demonstrated in terms of small
business scenarios. e book’s scenario descriptions along with source program resource containing the ABAP
program source enable the reader to create all objects related to the scenario and run or execute them. e underlying
concepts of a feature/command are totally conveyed through execution of these hands-on programs.
■ IntroduCtIon
xxxii
e demonstrating/illustrating objects, including the programs, rely on some of the SAP functional module
tables being populated (the term functional module is explained in Chapter 1). is is assured if the reader is logged
on to an IDES (internet demonstration & evaluation server) server or system. e IDES server is briey described in
Chapter1. An IDES server is now a de facto system for all SAP training related activities. Specically SAP functional
module tables used for illustration and hands-on exercises in the book are the basic tables of sales and purchase. Most
people with nil or little to no exposure to the business, and commercial world relate to the business areas of sales and
purchase.
All of the hands-on exercises in the book are performed using SAP sales and purchase functional module tables.
e IDES server is used ensuring substantial data in the SAP functional module tables. Details of the SAP functional
module tables used in the hands-on exercises are to be found in Appendix A. e authors strongly advise you to go
through the appendix describing the functional module tables used in the hands-on exercises of the book. You can
visit this Appendix A before you commence the reading of a chapter from Chapter 5 onwards (when you start using
the SAP functional module tables).
e book also uses a “carry forward” approach for the hands-on exercises. Where ever possible, a hands-on
exercise performed in earlier chapters is carried forward to subsequent chapters, with additions and enhancements
carried out to it. is involves re-usability of created objects again and again.
Chronology and order of presentation of topics and sub topics is related to pre requisites required for the
presented topics and sub topics. At some places, topics and sub topics are introduced on a preview basis to make the
current hands-on exercise more meaningful. Subsequently the topics and sub topics introduced on a preview basis
are formally presented.
e authors strongly insist that you perform the hands-on exercises as you read a chapter and encounter the
hands-on exercises—do not defer performing them until after reading a chapter or the book. It should not be just
reading, but reading and simultaneously performing the hands-on exercises.
Resources
e book is supplemented with an E-resource or source program resource.
e E-resource or source program resource contain the hands-on exercises source programs. Most source
programs in the E-resource are also listed in the book. Some source programs of the E-resource are partially listed
in the book and some are not listed in the book. is is indicated in the respective chapters. e E-resource is
downloadable and each of the hands-on exercise source programs can be opened as a separate le in Windows
Notepad. While performing the hands-on exercises, you can copy and paste an entire source program from the
E-resource, or manually enter the source program by referring to the source program lines of the E-resource. Manual
entry of source programs will get you a feel of the syntax of statements. If you are copying and pasting, remember
to replace the ‘REPORT. . .’ statement line from the E-resource program into the created ABAP program in the ABAP
workbench environment. You will be introduced to the ABAP workbench environment in Chapter 1.
In addition to the book and the supplementary E-resource, you will use the following additional resources:
You must have connectivity to SAP, preferably a SAP IDES server. Your log-in user id must be able to create, edit
and delete objects in the ABAP workbench environment. Your log-in user id must be able to access data from SAP
functional module tables. Apart from book reading, some extra reading is required such as:
You will need to read extra theory and description not exposited in the book. You need to refer to some detailed
information not provided in the book.
You will need to read up the detailed tutorial or documentation related operations in the ABAP workbench
environment not described in the book.
You will likely refer to and read the detailed properties, methods and events, etc. of some SAP supplied classes.
e material for most of the above mentioned readings is available in freely downloadable PDF documents
from the following link http://www.easymarketplace.de/online-pdfs.php. You will not violate any copyright law
downloading the documents from this link. ese are PDF documents of SAP version 4.6C. ough the documents are
older versions; they will largely serve your purposes.
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