Course Description (By Curriculum)

REXX Looping and Tracing

Duration

3 to 4 hours

Overview

Audience

Personnel requiring an introduction to REXX and knowledge of the fundamentals of programming in REXX

Prerequisites

Completion of the courses Introduction to Mainframe REXX and REXX Keywords and Functions or equivalent experience, a basic knowledge of data processing concepts, and basic programming skills

Objectives

After completing this course, the student will be able to:
• Define the REXX looping structures
• Define the REXX tracing commands
• Identify how a REXX program is traced and debugged

Course Content

Looping Instructions, Part 1

Simple
Repetitive
Simple Repetitive
Infinite
Count-1
Forever
Leave

Looping Instructions, Part 2

Iterate
Controlled Repetitive
Conditional
Do While
Do Until
Compound Loops
Rep and Cond Combined

Looping Instructions, Part 3

Nested

Tracing and Debugging

The TRACE Keyword
The RC Special Variable
Errors Vs Failures
Alphabetic Trace Options
Prefix Trace Options
Interactive Debug
Numeric Trace Options


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