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Labs - COBOL (z/OS) – COBOL Basics

Duration

10 hours

Overview

The Labs – COBOL (z/OS) – COBOL Basics course provides a range of exercises that can be run in your organization’s mainframe training sandbox. Initial exercises focus on compiling, binding and executing existing COBOL programs, and then move to creating basic COBOL code used to display formatted output.

Audience

Programmers who need to use COBOL in a z/OS environment.

Prerequisites

Each Lab module below contains its own list of prerequisites or equivalent knowledge, which is displayed when accessing the module.

    After completing this course, the student will be able to:
  • Create and debug a batch job to compile, bind, and execute a COBOL module
  • Define COBOL program input and output requirements
  • Define strings, numbers, and dates
  • Code an inline subroutine

Course Content

Compiling, Binding, and Running a COBOL Program

Identifying Compiling Problems
Binding Issues
Invoking a COBOL Program in Batch
Questions

Batch Parameters and Return Codes

Passing Parameters to a COBOL Program
Checking for Valid Input
RETURN-CODE Special Register
Displaying Results
Questions

Manipulating String Data and Dates

Reading Data from SYSIN
ACCEPT Statement
Error Checking
REVERSE and UPPER-CASE Intrinsic Functions
INSPECT Statement with TALLYING Phrase
CURRENT-DATE Intrinsic Function
DATE-OF-INTEGER and INTEGER-OF-DATE Intrinsic Functions
Questions

Basic Arithmetic Calculations

PERFORM Statement
COMPUTE Statement
ON SIZE ERROR Phrase
Questions

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