RPG Jumpstart from RPGIII to RPGIV Free Format

This course is designed for programmers going from RPGIII to RPGIV.

The course is designed for 3-4 days and assumes that the participants have (at least) mastered RPGIII.

From RPGIII to RPGIV

Specifications and Keywords in Free Format

• H-Specifications - CTL-Opt
• F-Specifications - DCL-F
• D-Specifications - Definitions
  • DCL-S - Stand Alone Fields and Arrays
  • DCL-C - Constants
  • DCL-DS - Data Structures and Array Data Structures
• C-Specifications - Overview
• P-Specifications - DCL-Proc / End-Proc

C-Specifications

• Free Format Coding
• New Operations Codes
• File Access - Keylist Alternatives

Coding RPG without Indicators

Built-In-Functions

Data Structures and Arrays

• Qualified and unqualified Data Structures
• Nested Data Structures
• Overlayed Data Structure Sub Fields
• External Data Structures
• Program and File Status Data Structures
• Arrays
• Array Data Structures

Prototyping - Basics

• Prototyp and Procedure Interface
• Input Only Parameters