Datatrain Computer Based Training / Online e-Learning

COBOL File Handling

Duration

4 - 5 hours

Overview

Audience

Personnel wishing for a good understanding of how to program using COBOL

Prerequisites

Basic knowledge of Computing Concepts and successful completion of Datatrain's COBOL Basics and COBOL Arithmetic & Procedures courses or similar

Objectives

After completing this course, the student will be able to -

• Use COBOL's file handling methods

Course Content

Module 1 FILE PROCESSING

• File Processing Overview
• Common File Considerations
• The functions of Files
• Types of Files

Module 2 SEQUENTIAL FILE PROCESSING

• COBOL File processing
• The Environment Division
• The Data Division
• Operations on Files
• The Write Verb
• Multiple Record Types

Module 3 DIRECT FILE PROCESSING - INDEXED FILES (Part 1)

• Direct Access Files
• Primary & Secondary Keys
• File Processing
• The Access Mode Clause
• Duplicate Keys

Module 4 DIRECT FILE PROCESSING - INDEXED FILES (Part 2)

• Working with Indexed Files
• A Sequential Read
• A Direct Read
• The Start Verb
• The Delete Verb
• Writing New Records

Module 5 DIRECT FILE PROCESSING - RELATIVE FILES (Part 1)

• Direct Access Files
• Processing Relative Files
• The Record Definition
• Calculating the Relative Key

Module 6 DIRECT FILE PROCESSING - RELATIVE FILES (Part 2)

• Opening Relative Files
• A Sequential Read
• A Direct Read
• The Start Verb
• The Delete Verb
• Writing New Records

Library

This course is part of the Cobol library and the Programming Languages library.