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Discover ABAP

Thorsten Franz, Karl-Heinz Kuhnhauser (Autoren)

Buch | Softcover

533 Seiten

2011 | 2nd New edition
SAP Press (Verlag)
978-1-59229-402-2 (ISBN)

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ABAP workshops to help you learn quickly Task-oriented presentation of the most important ABAP statements Commented code examples and many screenshots 2nd edition, updated and expanded Are you an ABAP novice? Not for long! With this book, you re well on your way to becoming fluent in the language of ABAP. Begin at the beginning with a quick introduction to the SAP system, and then gain an instant sense of achievement with self-written source code. Based on a simple example, you ll be able to create your own programming solutions before you know it. Discover the world of ABAP development in more and more detail, from single-line reports to program flow control and data transfer. With commented code examples, numerous screenshots, and valuable tips and tricks, you ll soon feel like you were born to speak ABAP. The Whole Picture Learn everything you need to explore the world of ABAP programming: the architecture of the SAP system, the most essential development tools, and the structure of ABAP reports. Getting Started Write your very first ABAP program! It only takes a few steps to create your first report, maintain its properties, and write the source code.
Follow Along with a Comprehensive Example Create database tables and lists, work with fields and calculations, and detect errors. Thanks to the hands-on examples, you ll quickly understand the application purpose of your code lines. Sample Code Benefit from detailed and fully commented sample code that will take you to the next level of ABAP understanding. Advanced Topics Move beyond the basics to master logical expressions, modularize programs, and deal with forbidden code. Highlights Getting started in the SAP system ABAP Dictionary and ABAP Editor Fields and calculations Modifying character strings Debugging programs Modifying transparent database tables Calculating dates, times, quantities, and currencies Using data in a database table Program flow control and logical expressions Selection screens Internal tables Modularizing programs

Karl-Heinz Kuhnhauser is a managing partner of RGS GmbH & Co. KG, an SAP service partner. He possesses extensive project experience that he gained in over 50 customer projects -- training experience from over 1,000 training days, industry experience in the areas of retail, banking, and insurance at a variety of companies, and experience in the public sector. He also passes on the knowledge he acquired from this experience to others in his position as assistant lecturer in SAP application development and Human Resources at the technical college of Ansbach, Germany, and as a member of the training working group and the inspection committee of the IHK (German Chamber of Commerce and Industry). Thorsten Franz is a software architect at AOK Systems GmbH. For ten years, he has been working as a developer, coach, consultant, and trainer and has managed the rollout of ABAP development projects. He was also responsible for architecture and development management in a large strategic project in cooperation with SAP AG. His work revolves around the development of SAP-based applications and frameworks, as well as application integration. He is particularly interested in the SAP NetWeaver platform and the options to make it available for new applications. His current focus is on enterprise architecture and includes topics such as SOA, Web Services, Composite Applications, NetWeaver for Java, and Web Dynpro.In previous projects, Thorsten worked with many different components, frameworks, and technologies of the SAP world, such as HCM, BI, FS-PM, CRM, BP, Workflow, ALE, BDT, and BRF. He has given several presentations on these subjects at the SAP Developer's Summit 2002 in Las Vegas.

. Preface to the Second Edition. 15

1. ABAP and Getting Started with the SAP System. 21

. Overview of the Architecture of an SAP System. 23

. Application Programs and Runtime Environment. 28

. Logging On and Off the System. 34

2. ABAP Dictionary. 45

. Getting Started with the ABAP Dictionary. 46

. Data Elements and Domains. 52

. Creating Data Records. 66

3. Programming in the ABAP Editor. 71

. Creating an ABAP Report. 71

. ABAP Editor: Overview. 75

. Understanding and Editing ABAP Programs. 82

. Executing an ABAP Report. 84

. Reading and Outputting Database Tables. 86

. Formatting Lists. 88

. Writing and Editing Source Code. 90

4. Fields and Calculations. 99

. Preparing the Report. 99

. Declaring Fields. 104

. Basic Arithmetic Operations. 110

. Sample Code for Fields and Calculations. 115

5. Modifying Character Strings. 121

. Declaring Character Strings. 121

. String Operations. 124

. Sample Code for String Operations. 133

6. Debugging Programs. 141

. Overview. 141

. Calling the ABAP Debugger. 142

. Working with the ABAP Debugger. 147

. Layer for Layer: Layer-Aware Debugging. 160

. Sample Code for Layer-Aware Debugging. 168

7. Modifying Transparent Database Tables. 173

. Copying a Database Table. 175

. Enhancing Non-Key Fields. 180

. Manipulating Key Fields of Tables. 203

. Deleting Table Fields. 207

. Deleting Tables. 209

8. Calculating Dates, Times, Quantities, and Currencies. 213

. Field Definitions. 213

. Using Date Fields in Arithmetic Operations. 216

. Using Time Fields in Arithmetic Operations. 223

. Using Quantity and Currency Fields in Arithmetic Operations. 227

. Sample Code for Date, Time, and Currency Fields. 229

9. Using Data in a Database Table. 243

. Authorization Concept. 244

. Lock Concept. 246

. OpenSQL Statements. 249

. Comfortable Alternative: Object Services. 257

. Sample Code for INSERT. 258

. Sample Code for UPDATE. 263

. Sample Code for MODIFY. 266

. Sample Code for DELETE. 270

10. Program Flow Control and Logical Expressions. 275

. Control Structures. 276

. Using Patterns. 277

. Branches. 280

. Loops. 287

. Logical Expressions. 295

. Sample Code for IF. 302

. Sample Code for CASE. 306

. Sample Code for DO and Termination Conditions. 311

. Sample Code for WHILE and Logical Expressions. 316

11. Selection Screens. 323

. Events. 325

. Simple Selections. 328

. Complex Selections. 336

. Using Selection Texts. 342

. Saving the Selection Screen. 346

. Completing Text Objects. 354

. Free Layout of the Selection Screen. 360

. Sample Code for Selection Screen (Simple Form). 364

. Sample Code for Selection Screen (Extended Form). 369

12. Internal Tables. 381

. Purpose of Internal Tables. 382

. Structure and Types of Internal Tables. 384

. Creating an Internal Standard Table. 387

. Filling an Internal Standard Table. 392

. Processing an Internal Table Line by Line. 401

. Deleting the Contents of Internal Tables. 412

. Sample Code for ITAB with Work Area. 415

. Sample Code for ITAB with Header Line. 424

13. Modularizing Programs. 439

. Overview. 440

. Source Code Modules. 442

. Procedures. 445

. Memory Areas for Data Transfer. 479

. Sample Code for Modularization. 482

. Sample Code for Calling an External Report. 496

14. Advanced Topics. 503

. Interesting Times for the ABAP Programming Language. 503

. Programming Using Frameworks. 504

. Important Frameworks in the SAP Standard. 508

. Discover!. 517

. Index. 519

Erscheint lt. Verlag	30.12.2011
Reihe/Serie	SAP PRESS Englisch
Zusatzinfo	illustrations
Verlagsort	Maryland
Sprache	englisch
Maße	175 x 229 mm
Gewicht	975 g
Einbandart	gebunden
Themenwelt	Mathematik / Informatik ► Informatik ► Programmiersprachen / -werkzeuge
Themenwelt	Informatik ► Weitere Themen ► SAP
Schlagworte	ABAP • ABAP editor • ABAP objects • Data Dictionary • Discover • programming • SAP • SAP PRESS
ISBN-10	1-59229-402-2 / 1592294022
ISBN-13	978-1-59229-402-2 / 9781592294022
Zustand	Neuware