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Author: Paul David Hardy Publisher: ISBN: 9781484267127 Category : ABAP/4 (Computer program language) Languages : en Pages :
Book Description
Gain an in-depth understanding of the large number of common problems found in ABAP programs and have a robust methodology for fixing problems when you find them. This book also shows you how to prevent them from occurring in new programs. A large chunk of the world's biggest organizations use SAP software and virtually all of them have very large amounts of custom code. However, a lot of that custom code is not as good as it could be. In this book we look at why object-oriented programming is the basic building block for improved program quality and at the test-driven development that this enables. We cover the three pillars of clarity, stability, and high performance on which a high-quality ABAP program stands. You will then move on to the user interface, which needs its own set of standards for high quality. In the final chapters, you will learn about specialist topics such as user exits, making sure code will run on the latest releases of SAP, and how to add your own automated custom code quality checks. You will: Know why object-oriented programming and test-driven development are the cornerstones of high-quality custom code Ensure that the three pillars of clarity, stability, and high performance are fulfilled Make sure your applications are user friendly Ensure that your custom code works on newer SAP releases Create your own custom code quality checks.
Author: Paul David Hardy Publisher: ISBN: 9781484267127 Category : ABAP/4 (Computer program language) Languages : en Pages :
Book Description
Gain an in-depth understanding of the large number of common problems found in ABAP programs and have a robust methodology for fixing problems when you find them. This book also shows you how to prevent them from occurring in new programs. A large chunk of the world's biggest organizations use SAP software and virtually all of them have very large amounts of custom code. However, a lot of that custom code is not as good as it could be. In this book we look at why object-oriented programming is the basic building block for improved program quality and at the test-driven development that this enables. We cover the three pillars of clarity, stability, and high performance on which a high-quality ABAP program stands. You will then move on to the user interface, which needs its own set of standards for high quality. In the final chapters, you will learn about specialist topics such as user exits, making sure code will run on the latest releases of SAP, and how to add your own automated custom code quality checks. You will: Know why object-oriented programming and test-driven development are the cornerstones of high-quality custom code Ensure that the three pillars of clarity, stability, and high performance are fulfilled Make sure your applications are user friendly Ensure that your custom code works on newer SAP releases Create your own custom code quality checks.
Author: Klaus Haeuptle Publisher: SAP Press ISBN: 9781493220267 Category : Computers Languages : en Pages : 300
Book Description
ABAP developers, are you looking to clean up your code? Then pick up this official companion to the Clean ABAP GitHub repository. This book is brimming with best practices, straight from the experts, to help you write effective ABAP code. Start by learning when to apply each clean ABAP practice. Then, dive into detailed code examples and explanations for using classes, methods, names, variables, internal tables, and more. From writing code to troubleshooting and testing, this is your complete style guide! In this book, you'll learn about: a. Clean ABAP Concepts What is clean ABAP and why is it important to write clean code? Understand clean ABAP concepts with insight from the experts, including special considerations for legacy code and performance. b. Best Practices Walk through the what, why, and how behind clean ABAP best practices. Learn to improve your code, including using classes and interfaces appropriately, handling method design and control flow, designing and running unit tests, and much more. c. Practical Examples See clean ABAP practices in action! Improve your understanding of how to write effective code. Use detailed examples for each best practice that demonstrate the difference between clean and messy code. Highlights include: 1) Classes and interfaces 2) Methods 3) Names 4) Variables and literals 5) Internal tables 6) Control flow 7) Comments 8) Formatting 9) Error handling 10) Unit testing 11) Packages
Author: Winfried Schwarzmann Publisher: SAP PRESS ISBN: 9781493218325 Category : Computers Languages : en Pages : 0
Book Description
Code-based test improvement -- Design-based test improvement -- Robust integration test -- Minimizing dependencies -- Isolated component test -- Redesign with unit tests.
Author: Paul Hardy Publisher: SAP PRESS ISBN: 9781493221561 Category : Computers Languages : en Pages : 845
Book Description
ABAP to the Future is back, and better than ever! Looking for the latest in ABAP syntax? The code examples are fully rewritten. Need to start working in the cloud with the ABAP RESTful application programming model? We've got you covered. Got a new IDE like SAP Business Application Studio? We'll show you the ins and outs of your environment. From abapGit and ABAP2XLSX to SAPUI5 and Web Dynpro ABAP, this new edition has everything you need to be on the cutting edge!
Author: Horst Keller Publisher: SAP Press ISBN: 9781592292905 Category : ABAP/4 (Computer program language) Languages : en Pages : 0
Book Description
How do you program good ABAP? This book, the official SAP programming style guide, will show you how to maximize performance, readability, and stability in your ABAP programs.
Author: Herman Gahm Publisher: SAP PRESS ISBN: 9781592292899 Category : ABAP/4 (Computer program language) Languages : en Pages : 348
Book Description
This book is your guide for analyzing and optimizing ABAP source code. You ll learn about the analysis tools and performance-relevant technologies, and discover how you can analyze existing source code and enhance your programming style. This is the resource you need to ensure that your ABAP programs are fully optimized. 1 Analysis Tools After reading this book, you ll know when and how to use analysis tools properly including Code Inspector, performance trace, ABAP trace, or single records statistics. 2 Programming Technologies Get detailed information on parallel processing, internal tables, SQL data processing, and much more, and learn how these technologies affect performance. 3 Buffering Explore the different buffers that are available on the SAP NetWeaver Application Server ABAP, and learn the most important buffer options to avoid unnecessary database accesses. 4 Database Tuning You ll obtain a description of the database architecture and the technical background of database accesses, and master the tuning options for database accesses. 5 New Developments Learn from a comprehensive overview of the new developments in ABAP Release 7.0, EhP2, such as Transaction SAT, the innovations of the performance trace, and changes of internal tables.
Author: Suman Saha Publisher: ISBN: Category : Languages : en Pages : 112
Book Description
In C, a typical strategy for implementing error handling code is to follow each operation that may encounter an error by a conditional that checks for an error result and, if one is found, performs the appropriate cleanup operations before returning from the function. This basic strategy, however, is itself error-prone, as it is easy to overlook some cleanup operations that are required, and to forget to update some existing error handling code when the function is extended with new operations that need to be undone in an error case. Furthermore, there may be substantial code duplication, as the same error handling code may be needed at many places within a function definition. One style of programming, goto-based strategy, that can somewhat alleviate these difficulties. To improve the structure of error handling code in the system software, we define an algorithm to transform error handling code implemented according to the basic strategy so that it follows the goto-based strategy. Even when error handling code is structured, the management of the releasing of allocated resources remains a continual problem in ensuring the robustness of systems code. In this thesis, we propose a microscopic resource-release omission fault finding algorithm, based on a mostly intraprocedural, flow and path-sensitive analysis, that targets and exploits the properties of error-handling code. Our algorithm is resistant to false positives in the set of resource acquisition and release operations, resulting in a low rate of false positives in the fault reports, and is highly scalable.
Author: Hermann Gahm Publisher: SAP PRESS ISBN: 9781493213047 Category : ABAP/4 (Computer program language) Languages : en Pages : 0
Book Description
See how SAP HANA has changed ABAP Whether you're studying for certification or just want to see what's new, you can learn to design simple and advanced SAP HANA applications with ABAP by using this comprehensive guide. Learn to enable code pushdown, use new Open SQL enhancements and CDS views, and integrate native SAP HANA objects. Use detailed programming examples to develop database procedures and optimize your applications. You'll be programming for SAP HANA in no time Basic Principles Explore essential SAP HANA principles like in-memory technology and architecture, the SAP Web IDE, and AS ABAP database programming. Advanced Techniques Learn to use tools like InfoProviders, EasyQuery Interface, and the Application Function Modeler for SAP HANA. Discover how to integrate geographical data from SAP HANA in ABAP programs. Optimizing Existing Applications Get step-by-step instructions to help you optimize existing ABAP applications, and learn how to speed up applications with SAP HANA. Highlights: Code pushdown SAP Web IDE Eclipse CDS views SQLScript Native SAP HANA object integration Open SQL enhancements Geo-information Text searches Error analysis
Author: Paul David Hardy
Author: Paul David Hardy
Author: Ben Meijs
Author: Klaus Haeuptle
Author: Winfried Schwarzmann
Author: Paul Hardy
Author: Horst Keller
Author: Herman Gahm
Author: Suman Saha
Author: Vishal Sherpa
Author: Hermann Gahm