Book Image

Mastering SAP ABAP

By : Paweł Grześkowiak, Wojciech Ciesielski, Wojciech Ćwik
Book Image

Mastering SAP ABAP

By: Paweł Grześkowiak, Wojciech Ciesielski, Wojciech Ćwik

Overview of this book

Advanced Business Application Programming (ABAP) is an established and complex programming language in the IT industry. This book is designed to help you use the latest ABAP techniques and apply legacy constructions using practical examples. You'll start with a quick refresher on language and database concepts, followed by agile techniques for adding custom code to a modern ABAP system. After this, you will get up to speed with the complete ABAP toolset for importing data to and from different environments. Next, you'll learn how to print forms and work with the different ABAP tools for Extensible Markup Language (XML) manipulation. While covering further chapters, you'll gain insights into building stunning UI5 interfaces, in addition to learning how to develop simple apps using the Business Object Processing Framework (BOPF). You will also pick up the technique of handling exceptions and performing testing in ABAP. In the concluding chapters, you can look forward to grasping various techniques for optimizing the performance of programs using a variety of performance analysis tools. By the end of this book, you will have the expertise you need to confidently build maintainable programs in Systems, Applications, and Products (SAP).
Table of Contents (25 chapters)
Title Page
Copyright and Credits
Dedication
About Packt
Contributors
Preface
Index

Starting with OpenSQL


As ABAP was invented as a report language, it has a huge set of statements for accessing tables. ABAP was designed for high-performance database operations, but not for the definition or control of database tables. By definition, it's usually not the mission of the program to create or control database tables. However, those functionalities are included implicitly within the SAP system.

The section of ABAP that accesses the database tables is named OpenSQL and includes similar commands to standard SQL, such as SELECT, INSERT, UPDATE, and DELETE, which are known as data manipulation language (DML). The differences between standard SQL and OpenSQL include the fact that OpenSQL is platform independent and part of the ABAP language. This enables the syntax check to identify errors within the implementation of the SQL statement. Furthermore, there are several variants of the commands that are only for ABAP programs, which ease or accelerate the database accesses.

The platform...