Read an Input File with COBOL

提供方
在此指导项目中,您将:

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.

1.5 hours
初级
无需下载
分屏视频
英语(English)
仅限桌面

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.

您要培养的技能

  • OpenCobolIDE

  • Common Business Oriented Language (COBOL)

  • COBOL FD

  • File Processing

  • COBOL Programming

分步进行学习

在与您的工作区一起在分屏中播放的视频中,您的授课教师将指导您完成每个步骤:

  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.

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常见问题

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