ABAP 4 is the programming language used to code SAP R/3. The full form of ABAP is advanced business application programming. There are three main components of the ABAP 4 language. These are -

- ABAP 4 Development Workbench
- ABAP 4 Data Dictionary
- ABAP 4 Repository Information

Some of you might remember one of my earlier post on ABAP Workbench. You can find the post here. The development workbench gives access to SAP's development tools. Any program developed in ABAP is stored in the R/3 repository. Defintions of variables and parameters on the other hand are stored in the data dictionary. ABAP programmers use the development workbench to write programs in SAP.

ABAP is similar to many other programming language. It consists of Source Code, Text elements and Attributes. As part of the ABAP 4 sysntax, certain rules apply to writing the ABAP code. Some of such examples are that each statement must end with a period. The first word of the ABAP code is known as the "Key Word". Words within the code need to be seperated by atleast on blank. ABAP is a very stable programming language and some ABAP programs can be run into pages.

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