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 Recommendations ... 495
... D ... The Authors ... 497

... Index ... 501