Book Image

SAP ABAP Advanced Cookbook

By : Rehan Zaidi
Book Image

SAP ABAP Advanced Cookbook

By: Rehan Zaidi

Overview of this book

ABAP (Advanced Business Application Programming) is SAP's proprietary 4th Generation Language (4GL). SAP core is written almost entirely in ABAP.ABAP is a high level programming language used in SAP for development and other customization processes."SAP ABAP Advanced Cookbook"ù covers advanced SAP programming applications with ABAP. It teaches you to enhance SAP applications by developing custom reports and interfaces with ABAP programming. This cookbook has quick and advanced real world recipes for programming ABAP.It begins with the applications of ABAP Objects and ALV tips and tricks. It then covers Design Patterns and Dynamic Programming in detail.You will also learn the usage of quality improvement tools such as transaction SAT, SQL Trace, and the Code Inspector.Simple transformations and its application in Excel Downloading will also be discussed, as well as the newest topics of Adobe Interactive Forms and the consumption and creation of Web services. The book comes to an end by covering advanced usage of Web Dynpro for ABAP and the latest advancement in Floorplan Manager.
Table of Contents (22 chapters)
SAP ABAP Advanced Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Introduction


This chapter explores recipes related to dynamic programming. Dynamic programming is a very vast topic. It may be simply defined as a technique whose behavior/effect is only evident at execution time. There are many facets of dynamic programming with ABAP. These include generic programming such as dynamic source code generation. Also specifying parts of the Open SQL statements (clauses) dynamically using string variables, and the creation of data objects based on a type known only at runtime are within the dynamic programming landscape. When using dynamic programming, we may also sometimes need to determine the data type of data objects at runtime. This is called Runtime Type Identification (RTTI).

The ABAP language provides a number of features/options for making programs dynamic or to avoid hardcoding of values. We will start with application of field symbols and references. As an example, we will create a program that will take as input the name of a table and print its contents...