ABAP is a powerful programming language created by SAP. It is used to develop software for the SAP R/3 platform, and is also used in the creation of Web applications. ABAP is a fourth-generation language, and is based on the programming language Pascal.
ABAP is a very versatile language, and can be used for a wide variety of applications. It is well suited for creating business applications, and is also used for SAP's own internal applications. ABAP is a very robust language, and can handle large amounts of data.
ABAP is not a difficult language to learn, but it does take some time to master. There are a number of excellent books and online resources that can help you learn ABAP.