The Official ABAP Reference

Enlarged
ISBN: 978-1-59229-376-6
Verlag: SAP PR

Buch, Englisch, 1677 Seiten, Format (B × H): 192 mm x 244 mm, Gewicht: 3012 g

Reihe: SAP PRESS: englisch

Get to know ABAP in all its intricacy and detail with this, your comprehensive reference for all ABAP statements. Each chapter discusses the relevant keywords for the topic at hand, and begins with an introduction that explains the essential concepts, such as character string processing, dynpro development, and more. For each statement, the book offers an explanation of the function, the syntax listing, a description, notes on special usage, and an example. The clear organization of content, a full index, and the comprehensive glossary will help you navigate through the complexities of ABAP with ease.

1. Comprehensive Discussion of Keywords
Learn about every language construct that you may encounter in dealing with ABAP programs, whether it is brand new or obsolete.

2. Syntax Diagrams
Explore syntax diagrams for each statement that show you all your options at a glance.

3. Practical Examples
Expand your knowledge with the various example programs that give you a feel for the surrounding structure of a program statement.

4. Icons for New Concepts
Easily identify new content and statements via icons throughout the text.

5. ABAP Glossary
Browse a unique glossary of almost 1,000 entries, which explains all programming concepts from A to Z.

Highlights:

- Extended expression handling

- Pragmas

- Internal tables

- Unicode extension

- Obsolete language elements

- Conversion rules

- Allocations

- ABAP and XML

- Exceptions

- Glossary

Autoren/Hrsg.

Keller, Horst

Fachgebiete

• Mathematik | Informatik EDV | Informatik Business Application Unternehmenssoftware SAP
• Wirtschaftswissenschaften Betriebswirtschaft Wirtschaftsinformatik, SAP, IT-Management
• Mathematik | Informatik EDV | Informatik Programmierung | Softwareentwicklung Programmier- und Skriptsprachen

Inhaltsverzeichnis

... Preface ... 191 ... Introduction ... 23 ... 1.1 ... Releases Used ... 23 ... 1.2 ... New Features in Releases 7.02 and 7.2 ... 25 ... 1.3 ... Syntax Conventions in The Official ABAP Reference ... 30PART 1 ... ABAP Overview ... 332 ... ABAP Programming Language ... 35 ... 2.1 ... SAP NetWeaver ... 35 ... 2.2 ... Scope and Usage Areas ... 36 ... 2.3 ... Programming Models ... 37 ... 2.4 ... Unicode ... 37PART 2 ... ABAP Syntax ... 393 ... Statements ... 41 ... 3.1 ... ABAP Words ... 42 ... 3.2 ... Operands ... 42 ... 3.3 ... Operators and Expressions ... 594 ... Names ... 61 ... 4.1 ... Naming Conventions ... 61 ... 4.2 ... Name Spaces ... 625 ... Chained Statements ... 636 ... Comments ... 657 ... Program Directives ... 67 ... 7.1 ... Pragmas ... 67 ... 7.2 ... Pseudo Comments ... 69PART 3 ... Program Structure ... 718 ... Program Structure ... 739 ... Programs ... 75 ... 9.1 ... Standalone Programs ... 75 ... 9.2 ... Executable Programs ... 77 ... 9.3 ... Module Pools and Subroutine Pools ... 80 ... 9.4 ... Function Groups ... 82 ... 9.5 ... Class Pools ... 84 ... 9.6 ... Interface Pools ... 85 ... 9.7 ... Type Groups ... 8610 ... Modularization ... 89 ... 10.1 ... Procedures ... 89 ... 10.2 ... Dialog Modules ... 99 ... 10.3 ... Event Blocks ... 100 ... 10.4 ... Source Code Modules ... 10711 ... Built-in Elements ... 113 ... 11.1 ... Built-in Data Types ... 113 ... 11.2 ... Built-in Data Objects ... 131 ... 11.3 ... Built-in Functions ... 140PART 4 ... Declarative Statements ... 14512 ... Types and Objects ... 147 ... 12.1 ... Validity and Visibility ... 148 ... 12.2 ... Absolute Type Names ... 149 ... 12.3 ... Shared Objects ... 15213 ... Data Types and Data Objects ... 153 ... 13.1 ... Declaring Data Types ... 153 ... 13.2 ... Declaring Data Objects ... 17914 ... Classes and Interfaces ... 203 ... 14.1 ... Defining Classes ... 203 ... 14.2 ... Defining Interfaces ... 221 ... 14.3 ... Declaring Components ... 22415 ... Field Symbols ... 25916 ... Typing ... 261 ... 16.1 ... Syntax of Typing ... 261 ... 16.2 ... Checking the Typing ... 265PART 5 ... Generating Objects ... 27317 ... Creating Objects ... 275 ... 17.1 ... Creating Data Objects ... 275 ... 17.2 ... Creating Instances of Classes ... 287PART 6 ... Executing Program Units ... 29518 ... Calling Programs ... 297 ... 18.1 ... Calling Executable Programs ... 297 ... 18.2 ... Calling Transactions ... 31519 ... Calling Processing Blocks ... 323 ... 19.1 ... Calling Procedures ... 323 ... 19.2 ... Calling Event Handlers ... 354 ... 19.3 ... Calling Event Blocks ... 35920 ... Exiting Program Units ... 361 ... 20.1 ... Leaving Programs ... 361 ... 20.2 ... Exiting Processing Blocks ... 362 ... 20.3 ... Exiting Loops ... 368PART 7 ... Program Flow Control ... 37121 ... Logical Conditions ... 373 ... 21.1 ... Logical Expressions ... 373 ... 21.2 ... Logical Functions ... 40022 ... Control Structures ... 405 ... 22.1 ... Branches ... 405 ... 22.2 ... Loops ... 408 ... 22.3 ... Exception Handling ... 411PART 8 ... Assignments ... 43523 ... Assignment Rules ... 437 ... 23.1 ... Compatibility of Data Types ... 438 ... 23.2 ... Conversion Rules for Elementary Data Objects ... 440 ... 23.3 ... Conversion Rules for Structures ... 461 ... 23.4 ... Conversion Rules for Internal Tables ... 467 ... 23.5 ... Assignment Rules for Reference Variables ... 467 ... 23.6 ... System Class for Character Set Conversion and Number Format Conversion ... 47224 ... Assigning Values ... 473 ... 24.1 ... General Assignment ... 474 ... 24.2 ... Lossless Assignment ... 476 ... 24.3 ... Multiple Assignments ... 486 ... 24.4 ... Assigning Structure Components ... 486 ... 24.5 ... Special Assignment of a Packed Number ... 48925 ... Setting References ... 491 ... 25.1 ... Assigning Data Objects to Field Symbols ... 491 ... 25.2 ... Retrieving Data References ... 51026 ... Initializations ... 513 ... 26.1 ... Initializing Data Objects ... 513 ... 26.2 ... Releasing Memory ... 514 ... 26.3 ... Initializing Field Symbols ... 515PART 9 ... Processing Internal Data ... 51727 ... Numerical Calculations ... 519 ... 27.1 ... Statements for Numerical Calculations ... 519 ... 27.2 ... Arithmetic Expressions ... 525 ... 27.3 ... Numerical Functions ... 533 ... 27.4 ... System Classes for Mathematical Operations ... 54428 ... Character String and Byte String Processing ... 547 ... 28.1 ... Properties of Character String and Byte String Processing ... 547 ... 28.2 ... Statements for Character String and Byte String Processing ... 550 ... 28.3 ... Character String Expressions ... 603 ... 28.4 ... Character String Functions ... 625 ... 28.5 ... Regular Expressions ... 649 ... 28.6 ... Expressions and Functions for Byte String Processing ... 675 ... 28.7 ... System Classes for Character String and Byte String Processing ... 67929 ... Internal Tables ... 681 ... 29.1 ... Properties of Internal Tables ... 681 ... 29.2 ... Statements for Internal Tables ... 696 ... 29.3 ... Table Function ... 772 ... 29.4 ... Special Statement for Internal Tables ... 77230 ... Extracts ... 779 ... 30.1 ... Declaring Field Groups ... 779 ... 30.2 ... Defining the Line Structure ... 780 ... 30.3 ... Filling the Extract Dataset ... 781 ... 30.4 ... Sorting the Extract Dataset ... 782 ... 30.5 ... Reading the Extract Dataset ... 785 ... 30.6 ... Control-Level Processing ... 78531 ... Properties of Data ... 791 ... 31.1 ... Specifying Elementary Properties ... 791 ... 31.2 ... Run Time Type Services ... 80132 ... Streaming ... 803 ... 32.1 ... Classes and Interfaces for Streams ... 803 ... 32.2 ... Streaming for Data Objects ... 806PART 10 ... User Dialogs ... 80933 ... Classic Dynpros ... 811 ... 33.1 ... SAP GUI ... 812 ... 33.2 ... Dynpro Fields ... 813 ... 33.3 ... Dynpro Flow and Dynpro Sequences ... 814 ... 33.4 ... Statements in the Dynpro Flow Logic ... 815 ... 33.5 ... ABAP Statements for Dynpros ... 83934 ... Selection Screens ... 863 ... 34.1 ... Creating Selection Screens ... 864 ... 34.2 ... Defining Parameters ... 889 ... 34.3 ... Defining Selection Criteria ... 902 ... 34.4 ... Calling Selection Screens ... 913 ... 34.5 ... Selection-Screen Processing ... 915 ... 34.6 ... Selection Screen Events ... 916 ... 34.7 ... Free Selections ... 92135 ... Classic Lists ... 925 ... 35.1 ... Properties of Classic Lists ... 925 ... 35.2 ... Creating Lists ... 928 ... 35.3 ... Processing Lists in the List Buffer ... 970 ... 35.4 ... Displaying Lists ... 981 ... 35.5 ... Printing Lists ... 992 ... 35.6 ... Event Blocks for List Events ... 100636 ... Messages ... 1013 ... 36.1 ... Storing Messages ... 1013 ... 36.2 ... Behavior of Messages ... 1014 ... 36.3 ... Sending Messages ... 1022PART 11 ... Processing External Data ... 103337 ... Database Accesses ... 1035 ... 37.1 ... Database Tables ... 1035 ... 37.2 ... Open SQL ... 1036 ... 37.3 ... Object Services ... 1125 ... 37.4 ... Native SQL ... 1131 ... 37.5 ... ADBC ... 114238 ... Data Clusters ... 1151 ... 38.1 ... Creating Data Clusters ... 1151 ... 38.2 ... Reading Data Clusters ... 1161 ... 38.3 ... Importing the Directory ... 1174 ... 38.4 ... Deleting Data Clusters ... 1176 ... 38.5 ... Deleting Data Clusters in the ABAP Memory ... 1178 ... 38.6 ... System Classes for Data Clusters ... 117839 ... File Interface ... 1179 ... 39.1 ... Properties of the File Interface ... 1179 ... 39.2 ... Opening a File ... 1183 ... 39.3 ... Writing a File ... 1199 ... 39.4 ... Reading a File ... 1202 ... 39.5 ... Determining File Attributes ... 1207 ... 39.6 ... Changing File Attributes ... 1211 ... 39.7 ... Changing the File Size ... 1215 ... 39.8 ... Closing a File ... 1217 ... 39.9 ... Deleting a File ... 121840 ... Data Consistency ... 1219 ... 40.1 ... Database LUW ... 1219 ... 40.2 ... SAP LUW ... 1223 ... 40.3 ... Database Locks ... 1232 ... 40.4 ... SAP Locks ... 1234 ... 40.5 ... Authorizations ... 1236PART 12 ... Program Parameters ... 123941 ... Parameters in the SAP Memory ... 1241 ... 41.1 ... SPA/GPA Parameters ... 1241 ... 41.2 ... Setting SPA/GPA Parameters ... 1243 ... 41.3 ... Reading SPA/GPA Parameters ... 124542 ... Language Environment ... 1247 ... 42.1 ... Text Pools ... 1247 ... 42.2 ... Text Environment ... 1249 ... 42.3 ... Formatting Settings ... 125543 ... Date and Time Information ... 1261 ... 43.1 ... System Fields for Date and Time ... 1261 ... 43.2 ... Time Stamps ... 1263PART 13 ... Program Processing ... 127344 ... Testing and Checking Programs ... 1275 ... 44.1 ... Checkpoints ... 1275 ... 44.2 ... Runtime Measurement ... 1282 ... 44.3 ... Runtime Analysis ... 128545 ... Program Editing ... 1287 ... 45.1 ... Source Code ... 1287 ... 45.2 ... Text Elements ... 1304PART 14 ... Data and Communication Interfaces ... 130946 ... Remote Function Call ... 1311 ... 46.1 ... Properties of an RFC ... 1311 ... 46.2 ... Remote Function Call ... 132047 ... XML Interface ... 1337 ... 47.1 ... XSL Transformations ... 1337 ... 47.2 ... Simple Transformations ... 1338 ... 47.3 ... Canonical XML Representation ... 1339 ... 47.4 ... Calling a Transformation ... 136048 ... OLE Interface ... 1373 ... 48.1 ... Creating an Automation Object ... 1373 ... 48.2 ... Calling an Automation Method ... 1375 ... 48.3 ... Determining the Attributes of an Automation Object ... 1378 ... 48.4 ... Changing the Attributes of an Automation Object ... 1379 ... 48.5 ... Releasing an Automation Object ... 1380PART 15 ... Enhancements ... 138149 ... Source Code Enhancement ... 1383 ... 49.1 ... Implicit Enhancement Options ... 1383 ... 49.2 ... Explicit Enhancement Options ... 138450 ... BAdIs ... 1391 ... 50.1 ... Creating a BAdI Object ... 1392 ... 50.2 ... Calling BAdI Methods ... 1396PART 16 ... Obsolete Statements ... 139951 ... Obsolete Syntax ... 1401 ... 51.1 ... Obsolete Statement Structures ... 1401 ... 51.2 ... Obsolete Pseudo Comments ... 1401 ... 51.3 ... Obsolete Deactivation of the Program Check ... 140352 ... Obsolete Modularization ... 1405 ... 52.1 ... Obsolete Subroutines ... 1405 ... 52.2 ... Obsolete Function Module Parameters ... 1412 ... 52.3 ... Obsolete Temporary Storage ... 141553 ... Obsolete Declarations ... 1417 ... 53.1 ... Obsolete Type Definitions ... 1417 ... 53.2 ... Obsolete Declaration and Loading ... 1418 ... 53.3 ... Obsolete Interface Work Areas ... 1420 ... 53.4 ... Obsolete Internal Tables ... 1423 ... 53.5 ... Obsolete Field Symbols ... 1429 ... 53.6 ... Obsolete Type Reference ... 143154 ... Obsolete Object Creation ... 143355 ... Obsolete Calls ... 1437 ... 55.1 ... Obsolete Dialog Modules ... 1437 ... 55.2 ... Obsolete Function Module Exit ... 1439 ... 55.3 ... Obsolete Function Module Exception ... 1441 ... 55.4 ... Obsolete External Subroutine Call ... 1442 ... 55.5 ... Obsolete Exiting ... 144256 ... Obsolete Program Flow Control ... 1445 ... 56.1 ... Obsolete Logical Expressions ... 1445 ... 56.2 ... Obsolete Control Structures ... 1447 ... 56.3 ... Obsolete Exception Handling ... 145257 ... Obsolete Assignments ... 1455 ... 57.1 ... Obsolete Percentaged Subfield ... 1455 ... 57.2 ... Obsolete Conversion ... 1455 ... 57.3 ... Obsolete Casting ... 1456 ... 57.4 ... Obsolete Dynamic Memory Area ... 1457 ... 57.5 ... Obsolete Initialization ... 145858 ... Obsolete Calculation Statements ... 1459 ... 58.1 ... Obsolete Addition of Field Sequences ... 1459 ... 58.2 ... Calculating Component by Component ... 146159 ... Obsolete Character String and Byte String Processing ... 1463 ... 59.1 ... Obsolete Search ... 1463 ... 59.2 ... Obsolete Replacement ... 1466 ... 59.3 ... Obsolete Translation ... 146760 ... Obsolete Processing of Internal Tables ... 1471 ... 60.1 ... Obsolete Short Forms ... 1471 ... 60.2 ... Obsolete Key Specifications ... 1471 ... 60.3 ... Obsolete Search ... 1475 ... 60.4 ... Obsolete Assignment of Formatted Character Strings ... 1476 ... 60.5 ... Obsolete Short Form of a Special Statement ... 1478 ... 60.6 ... Obsolete Deletion ... 148061 ... Obsolete User Dialogs ... 1481 ... 61.1 ... Obsolete Dynpro Flow Logic ... 1481 ... 61.2 ... Obsolete List Processing ... 1490 ... 61.3 ... Obsolete Text Editor ... 149562 ... Obsolete Processing of External Data ... 1497 ... 62.1 ... Obsolete Database Accesses ... 1497 ... 62.2 ... Obsolete Data Cluster Accesses ... 1504 ... 62.3 ... Obsolete Contexts ... 1507 ... 62.4 ... Obsolete Logical Databases ... 151263 ... Obsolete Data and Communication Interfaces ... 1525 ... 63.1 ... Obsolete XML Handling ... 1525 ... 63.2 ... Obsolete CPI-C Interface ... 1525 ... 63.3 ... Obsolete JavaScript Processing ... 1526 ... Appendices ... 1527 ... A ... ABAP Memory Organization ... 1527 ... B ... Memory Management of Deep Data Objects ... 1533 ... C ... ABAP Glossary ... 1539 ... Index ... 1623

Über Autor(innen)

Keller, Horst
Dr. Horst Keller works in the NetWeaver Developer Tools ABAP group at SAP. As Knowledge Architect he is responsible for documentation and roll-out relating to ABAP and ABAP Objects. He also oversees the programs for preparing and presenting the ABAP documentation including the relating search algorithms.