Trial version of reading local text file content with ABAP

Directory of zero-based ABAP learning tutorial series articles

• One of the BC400 study notes of the ABAP standard training course: the architecture of the ABAP server and an introduction to the structure of a typical ABAP program
• ABAP Standard Training Course BC400 Study Notes II: The Difference Between Cross-client and Client-specific
• ABAP Standard Training Course BC400 Study Notes No. 3: Features and Basic Elements of ABAP Programming Language
• ABAP Standard Training Course BC400 Study Notes No. 4: Data Types of ABAP Programming Language
• ABAP Standard Training Course BC400 Study Notes No. 5: Variables, Constants and Literals of the ABAP Programming Language, and Text Symbols

ABAP Basics

• Through practical examples, introduce the use skills of Repository Information System in SAP ABAP
• The use of ABAP function module
• Definition and use of ABAP subroutine
• Variables and Constants in ABAP
• System Fields in the ABAP programming language
• What is ABAP Field Symbol
• Introduction to ABAP Reference Types
• An introduction to the use of the ABAP debugger in the most easy-to-understand SAPGUI
• How to create the simplest ABAP database table, and code to read data from the database table (on)
• How to create the simplest ABAP database table and code to read data from the database table (below)
• Read local text file content with ABAP

ALV Development Topics

• 27 lines of code to develop a simplest SAP ALV report
• 48 lines of code to add color effects to the data rows of the ABAP ALV report
• 77 lines of code to implement double-click event processing in ABAP ALV

Reading local file text content with ABAP is a common requirement. Suppose I have a text file with the following content:

This file is stored locally: "C:\temp\1.txt"

Before following this article, be sure to study the following tutorial on how to use the ABAP Function Module:

• The use of ABAP function module

In this article, we use Function Module GUI_UPLOAD to complete the reading of local files.

There are only a dozen or so lines of code, and below we will explain how this program works line by line.