Simple RPG IV Program - Rpg4 Typing CST Test
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Simple RPG IV Program — Rpg4 Code
A simple RPG IV program printing numbers 1 to 5.
# rpg4/demo.rpgle
**FREE
FOR i = 1 TO 5;
DSPLY i;
ENDFOR;
*INLR = *ON;Rpg4 Language Guide
RPG IV (also called RPGLE or ILE RPG) is IBM’s modern dialect of the RPG programming language used on the IBM i (AS/400) platform. It provides structured, modular, and database-integrated programming capabilities for building business applications, batch processing systems, and enterprise automation on IBM i.
Primary Use Cases
- ▸CRUD operations on Db2 for i
- ▸Batch processing and scheduled jobs
- ▸Business logic for ERP systems
- ▸APIs and web service backends
- ▸Data transformation and ETL workflows
Notable Features
- ▸Free-form syntax
- ▸Native Db2 for i integration
- ▸ILE modular architecture
- ▸Service programs and binding directories
- ▸Strong performance for business workloads
Origin & Creator
Created by IBM for the IBM System/38 and later AS/400 platforms, evolving into RPG IV with the ILE (Integrated Language Environment) architecture.
Industrial Note
RPG IV remains deeply entrenched in manufacturing, banking, insurance, retail, logistics, and ERP vendors who rely heavily on IBM i for stable, high-throughput transactional systems.