File I/O with ABAP - Problems, Workarounds, and Prudent Practices

  • by Gerd Kluger, Developer, SAP NetWeaver Foundation ABAP Group, SAP
  • November 15, 2001
Working with files in ABAP is one of the rare instances where an ABAP programmer comes into contact with the world outside of an SAP system. He leaves a perfect world where everything fits neatly together and is confronted with the harsh reality of different operating and file systems. As experience often shows, there are many problems waiting to trap even the experienced programmer. This article provides invaluable insights into ABAP file handling mechanisms and expert advice for avoiding the common traps and pitfalls related to file input and output (I/O).

Gerd Kluger

Gerd Kluger studied computer science at the University of Kaiserslautern, Germany. After receiving his degree, he worked for a company whose main focus was the development of programming languages for business applications. He was responsible for the development of the compiler and programming environment for the object-oriented programming language Eiffel. Gerd joined SAP in 1998, and since then has been working in the SAP NetWeaver Foundation ABAP group. His main responsibility is in the development of ABAP Objects, the new class-based exception concept, and the further development of system interfaces, especially with regard to the file system.

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