ABAP Basics

Preface 11
Introduction 13
1 Technical Overview and Getting Started in the System 19
1.1 Overview of SAP Software and Architecture 19
1.2 Notes for Setting Up Access to SAP Software 24
1.3 Programmer's Checklist for Getting Started 27
1.4 Logon, Getting Started, and System Setup 32
2 Working with the Development Environ­ment: SAP Object Navigator 55
2.1 Getting Started with the SAP Object Navigator 59
2.2 Development Classes and Packages 68
2.3 Namespaces 72
2.4 First Program: "Hello World" -- REPORT, INCLUDE, and Application Menu 78
2.5 Online Help, help.sap.com, service.sap.com, and SAP Notes 105
3 Procedural Language Elements 117
3.1 Basic Commands and Fields WRITE, PARAMETERS, MOVE, SY Fields 120
3.2 Data and Data Types -- DATA, PARAMETERS, CONSTANTS, FIELD SYMBOLS, TYPE, CREATE, Text Elements 127
3.3 Structures and Internal Tables--TABLE, MOVE-CORRESPONDING, INSERT, APPEND, READ, MODIFY, DELETE, LOOP 151
3.4 Subprograms and Functions -- FORM, FUNC­TION, EXCEPTIONS 163
3.5 Branches and Logical Expressions -- IF, CASE 183
3.6  Loops -- WHILE, DO 198
4 Defining and Managing Database Tables 205
4.1 Field Properties -- DATA ELEMENT, DOMAIN 207
4.2 Defining and Processing Database Tables -- SELECT, INSERT, UPDATE, DELETE 222
5 Screen Input and Output 243
5.1 Simple Input and Output Interfaces -- SELECTION SCREEN, SELECT-OPTIONS, CALL SELECTION SCREEN, SAP List Viewer 245
5.2  Complex Input and Output Interfaces -- Dynpros 278
6 Object-Oriented Language Elements 343
6.1 Classes and Objects -- CLASS, CREATE OBJECT, METHOD 345
6.2 Inheritance and Polymorphism -- INHERITING FROM, REDEFINITION 377
6.3 EVENTS 396
7 Practice Scenario--Automated Accounting for Corporate Subsidiaries 421
7.1 Defining the Requirements and a List of Functions for the Application 422
7.2 Software Architecture 427
7.3 Software Design 430
7.4 Implementation 445
- Appendices 477
A Programming Guidelines and Tools 479
B Glossary 491
C Sources and Literature

Färber, Günther
Günther Färber is a partner at NEXONTIS IT GmbH in Düsseldorf, Germany. He runs the development and consulting departments. During and after his IT studies, his reputation as a successful IT author helped to propel his career as an IT consultant and developer in numerous large projects at renowned companies and service providers. He began work in a startup company in 1997. In 2001, he and Julia Kirchner founded NEXONTIS IT GmbH.

Kirchner, Julia
Julia Kirchner is a managing partner at NEXONTIS IT GmbH in Düsseldorf, Germany. She runs the research, training, and organization departments. During and after her IT studies, she worked as a developer in several projects at renowned banks and service providers. She began work in a management position in a startup company in 1999. In 2001, she and Günther Färber founded NEXONTIS IT GmbH.