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SAP R/3 Handbook, Third Edition, 3rd Edition by Jim Keogh, Jose Hernandez, Franklin Martinez

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Introduction to the ABAP Programming Language

ABAP stands for Advanced Business Application Programming. Before release 4.0 of SAP R/3, the language was known as ABAP/4 (the 4 meant it was a fourth-generation language). With release 4.0B, back in 1998, the name was changed to simply ABAP because, although the language maintains most of the best fourth-generation language features and previous syntax and keywords, many object-oriented features have been incorporated in a move to make it a fully capable object-oriented language.

ABAP is the programming language that SAP has used to develop all the SAP R/3 business modules and applications, including the system management functions. It is available to customers and developers to extend SAP functionality ...

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