Learn RPG with Real Code Examples
Updated Nov 20, 2025
Monetization
Legacy enterprise system maintenance
IBM i development consulting
ERP module enhancement
Financial system modernization
Training and documentation services
Future Roadmap
Continued support on IBM i platforms
Integration with modern web and APIs
Free-format RPG adoption
Legacy system modernization projects
Ongoing enterprise maintenance and consulting
When Not To Use
Modern web or mobile app development
Non-IBM legacy system projects
High-performance computing outside IBM i
Rapid prototyping or startups
Open-source or cross-platform software
Final Summary
RPG is a legacy programming language specialized for business data processing.
Strongly integrated with IBM i systems for batch and interactive applications.
Still relevant in finance, manufacturing, and logistics enterprises.
Modern free-format RPG improves readability and maintainability.
Faq
Is RPG still used?
Yes - mainly in IBM i/AS400 legacy systems.
Can RPG handle modern applications?
Yes, via free-format RPG and integration with APIs.
Is RPG only for reports?
Originally yes, but modern RPG handles business logic too.
Why learn RPG today?
Legacy enterprise systems still require maintenance and modernization.