System i: RPG III (RPG/400) to RPG IV and ILE

Course Overview

The course introduces RPG IV and ILE from the point of view of experienced RPG III (RPG/400) programmer. There are extensive hands-on exercises. On completion of the course, participants should be able to take full advantage of the benefits of RPG IV and ILE.

Audience

This course is for experienced RPG III (RPG/400) programmers.

Prerequisites

Experience with RPG III or RPG/400 is required.

Course Outline

RPG IV 101

• Background
• Conversion Options
• Format and Limit Changes
• Data Types
• H-Spec
• F-Spec
• D-Spec (Overview)
• C-Spec
• I-Spec and O-Spec

D Specs

• Data Structures
• Arrays
• Stand Alone Fields
• Replacing RPG Indicators
• The Indicator Data Structure

Expressions

• Arithmetic Expressions
• Character Expressions
• Logical Expressions
• Precision Rules

Built In Functions (BIFs)

• Using BIFs
• Types of BIFs

Dates, Times and Timestamps

• Defining
• Moving
• Calculating Durations

Prototyped Calls

• Prototypes
• Structure
• Useful Keywords
• Procedure Interface

Subprocedures (Part 1)

• P-Spec
• Structure
• Subprocedure Vs Subroutine

Introduction to ILE

• Static Binding Vs Dynamic Binding
• Bind By Copy
• Bind By Reference
• Service Programs

Subprocedures (Part 2)

• Subprocedures Vs Called Programs
• NOMAIN Modules

ILE - Other Topics

• Binding Directories
• Binder Language
• Activation Groups

System i: RPG III (RPG/400) to RPG IV and ILE / RPGIVC (RPGIVCGB)