Read an Input File with COBOL

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학습자는 이 안내 프로젝트에서 다음을 수행하게 됩니다.

Describe the function of File section in the Data Division in a COBOL program.

Write the COBOL code that reads an input file and writes an output file.

Demonstrate the process of compiling and running a COBOL program in OpenCobolIDE.

Clock1.5 hours
Cloud다운로드 필요 없음
Video분할 화면 동영상
Comment Dots영어
Laptop데스크톱 전용

In this project you will use COBOL code to read the data records from a sequential file. You will code, compile, and run programs using the PC-based COBOL IDE called OpenCobolIDE. Since COBOL is often used with large amounts of data, the ability to process files—to read the records in them as input and write the records as output—is a critical skill for any COBOL programmer.

개발할 기술

  • OpenCobolIDE
  • Common Business Oriented Language (COBOL)
  • File Processing
  • COBOL Programming

단계별 학습

작업 영역이 있는 분할 화면으로 재생되는 동영상에서 강사는 다음을 단계별로 안내합니다.

  1. Examine a sample sequential file as you observe how it is used to organize data and learn the associated terminology.

  2. Code the COBOL FD statement in the File section of the Data Division to describe the fields that make up a record within a sequential file used as input.

  3. Add, compile, and run the code in a COBOL program’s Procedure Division to read through the records in a sequential input file and then display the fields from each record on the screen.

  4. Define the layout of an output file in a COBOL program Data Division’s File section by describing the fields and data types that make up each record.

  5. Add, compile, and run COBOL code that moves data from the input record to the output record and generates a sequential file as output.

안내형 프로젝트 진행 방식

작업 영역은 브라우저에 바로 로드되는 클라우드 데스크톱으로, 다운로드할 필요가 없습니다.

분할 화면 동영상에서 강사가 프로젝트를 단계별로 안내해 줍니다.

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