ABAP

An Introduction
2. Auflage 2019
ISBN: 978-1-4932-1880-6
Verlag: Rheinwerk Publishing, Inc.

Buch, Englisch, 684 Seiten, Format (B × H): 182 mm x 236 mm, Gewicht: 1372 g

Reihe: SAP PRESS Englisch

Step into ABAP with this beginner's guide. First understand ABAP syntax and find out how to add data and logic to your applications. Then delve into backend programming: learn to work with the ABAP data dictionary, create database objects, and process and store data. Round out your skill set by practicing error handling, modularization, string manipulation, and more. With guided examples, step-by-step instructions, and detailed code you'll become an ABAP developer in no time!

a. ABAP Language Basics
Learn the ABAP language, from formatting code to using variables and constants. Understand how to add binary logic to applications, create simple user interfaces, and more.

b. Working with Data
Create data dictionary objects and program ABAP applications to process and read data from a database. Use working memory to store retrieved data and display it to users.

c. Manipulating Programs
Modularize ABAP programs, handle errors, and work with strings, texts, dates, times, and currencies.

d. Preparing for an ABAP Career
Understand the SAP system landscape, prepare your development environment, and explore the official ABAP development guidelines.

Highlights:

- Procedural programming

- Object-oriented programming

- Flow control

- Arithmetic operations

- Data dictionary

- Defining variables and constants

- Creating tables

- Database read/write

- Modularization

- Debugging

- SAP List Viewer (ALV)

Autoren/Hrsg.

O'Neill, Brian

Perfiljeva, Jelena

Fachgebiete

• Mathematik | Informatik EDV | Informatik Programmierung | Softwareentwicklung Programmier- und Skriptsprachen
• Mathematik | Informatik EDV | Informatik Business Application Unternehmenssoftware SAP

Inhaltsverzeichnis

... Preface ... 17 ... Audience ... 17 ... Your ABAP Learning Path ... 181 ... Introduction to SAP’s ERP Systems ... 23 1.1 ... What Are SAP and ABAP? ... 23 1.2 ... Current State of SAP’s ERP Systems ... 24 1.3 ... “Old” versus “New” ABAP ... 26 1.4 ... Navigating SAP ERP Systems ... 28 1.5 ... Summary ... 342 ... Creating Your First Program ... 35 2.1 ... “Hello, World!” ... 35 2.2 ... Summary ... 493 ... ABAP 101 ... 51 3.1 ... Variables and Constants in ABAP ... 51 3.2 ... Arithmetic and Basic Math Functions ... 65 3.3 ... Flow Control ... 72 3.4 ... Selection Screen Programming ... 80 3.5 ... Event Blocks ... 92 3.6 ... Formatting Code ... 95 3.7 ... Comments ... 97 3.8 ... Debugging Basics ... 100 3.9 ... Tying It All Together ... 117 3.10 ... Summary ... 1204 ... Data Dictionary Objects ... 121 4.1 ... What Is a Database? ... 121 4.2 ... What Is a Data Dictionary? ... 122 4.3 ... Database Design ... 123 4.4 ... Navigation to ABAP Dictionary Objects ... 127 4.5 ... Table, Data Element, and Domain ... 129 4.6 ... Training Data Model and Example Definition ... 132 4.7 ... Creating a New Domain ... 135 4.8 ... Creating a New Data Element ... 139 4.9 ... Creating and Editing Tables ... 144 4.10 ... Documentation ... 161 4.11 ... Viewing Data in the Database Tables ... 162 4.12 ... Table Maintenance Dialogs ... 170 4.13 ... Structures and Table Types ... 174 4.14 ... Search Help ... 177 4.15 ... Views ... 181 4.16 ... Summary ... 1845 ... Accessing the Database ... 185 5.1 ... SQL Console in Eclipse ... 186 5.2 ... Reading Data ... 187 5.3 ... Changing Data ... 210 5.4 ... Table Locks ... 214 5.5 ... Performance Topics ... 224 5.6 ... Obsolete Database Access Keywords ... 226 5.7 ... Summary ... 2276 ... Storing Data in Working Memory ... 229 6.1 ... Using ABAP Dictionary Data Types ... 229 6.2 ... Creating Data Types with the TYPE Keyword ... 231 6.3 ... Field Symbols ... 233 6.4 ... Defining Internal Tables ... 234 6.5 ... Reading Data from Internal Tables ... 241 6.6 ... Modifying Internal Tables ... 250 6.7 ... Other Internal Table Operations ... 257 6.8 ... Which Table Should Be Used? ... 261 6.9 ... Updating ABAP Dictionary Table Type ... 263 6.10 ... Obsolete Working Memory Syntax ... 265 6.11 ... Summary ... 2687 ... Making Programs Modular ... 269 7.1 ... Separation of Concerns ... 269 7.2 ... Subroutines ... 272 7.3 ... Introduction to Object-Oriented Programming ... 274 7.4 ... Structuring Classes ... 277 7.5 ... Global Classes ... 308 7.6 ... Design Patterns ... 317 7.7 ... Function Modules ... 317 7.8 ... Summary ... 3278 ... Error Handling ... 329 8.1 ... SY-SUBRC ... 329 8.2 ... Message Classes ... 331 8.3 ... Exception Classes ... 341 8.4 ... Non-Class-Based Exceptions ... 355 8.5 ... Summary ... 3589 ... Presenting Data Using the ABAP List Viewer ... 361 9.1 ... What Is ALV? ... 361 9.2 ... Report Example Using an SALV Table ... 366 9.3 ... Report Example Using SALV Tree ... 371 9.4 ... ALV with Integrated Data Access ... 380 9.5 ... Outdated ALV Frameworks ... 383 9.6 ... Summary ... 38610 ... Creating a Shopping Cart Example ... 387 10.1 ... The Design ... 388 10.2 ... Database Solution ... 392 10.3 ... Accessing the Database Solution ... 405 10.4 ... Creating a Message Class for the Solution ... 415 10.5 ... Creating Classic Screens for the Solution ... 416 10.6 ... Summary ... 42911 ... Working with Strings and Texts ... 431 11.1 ... String Manipulation ... 431 11.2 ... Text Symbols ... 437 11.3 ... Translating Data in Tables ... 445 11.4 ... Translating Messages ... 451 11.5 ... Obsolete String and Text Commands ... 453 11.6 ... Updating the Shopping Cart Example ... 454 11.7 ... Summary ... 46312 ... Working with Dates, Times, Quantities, and Currencies ... 465 12.1 ... Dates ... 465 12.2 ... Times ... 477 12.3 ... Quantities ... 482 12.4 ... Currencies ... 486 12.5 ... Updating the Shopping Cart Example ... 490 12.6 ... Summary ... 50413 ... User Interface Technologies ... 505 13.1 ... Working with Classic Dynpro Screens ... 505 13.2 ... Modern UI Technologies ... 528 13.3 ... Summary ... 53414 ... Working with ABAP Professionally ... 535 14.1 ... ABAP System Architecture Basics ... 535 14.2 ... Transport Management ... 539 14.3 ... Authorization Concept ... 550 14.4 ... Working with Files ... 566 14.5 ... ABAP Development Guidelines ... 582 14.6 ... Maintaining Documentation ... 586 14.7 ... ABAP Unit Tests ... 593 14.8 ... Background Jobs ... 602 14.9 ... Tools of the Trade ... 611 14.10 ... Backward Compatibility and Dealing with Legacy Code ... 621 14.11 ... Summary ... 623A ... Preparing Your Development Environment ... 627 A.1 ... ABAP Developer Edition Overview ... 627 A.2 ... ABAP Trial System Using SAP CAL ... 630 A.3 ... ABAP Trial System Using the Download Option ... 632 A.4 ... Getting Started with ABAP in Eclipse ... 633 A.5 ... ABAP-Based IDEs ... 639B ... Interfaces, Forms, Enhancements ... 645 B.1 ... Interfaces ... 645 B.2 ... Output Implementation in SAP ERP ... 649 B.3 ... Enhancements ... 654C ... Differences Between ABAP Versions ... 661 C.1 ... Release 7.0 ... 661 C.2 ... Release 7.02 (7.0 EHP 2) ... 662 C.3 ... Release 7.4 ... 663 C.4 ... Release 7.4 SP 5 ... 663 C.5 ... Release 7.4 SP 8 ... 663 C.6 ... Release 7.50 ... 664 C.7 ... Release 7.51 ... 664 C.8 ... Release 7.52 ... 664 C.9 ... Release 7.53 ... 665D ... Other Resources ... 667 D.1 ... SAP PRESS Books ... 667 D.2 ... SAP Community ... 668 D.3 ... openSAP ... 669 D.4 ... SAP Certifications ... 669 D.5 ... SAP TechEd Conferences ... 669 D.6 ... SAP Community Events ... 670E ... The Authors ... 671... Index ... 673

Über Autor(innen)

O'Neill, Brian
Brian O'Neill is an ABAP developer with experience working across different SAP ERP modules and custom applications. He has worked in a variety of IT positions, from business analyst to ABAP developer. He is currently writing applications that can connect to an SAP backend using SAP Gateway. He holds a bachelor’s degree in Computer Information Systems from California State University.