Learn RPG4 with Real Code Examples

Critical in enterprise automation

Supports long-lived custom ERP features

Reduces operational risk

Low cost of ownership for IBM i

High demand for modernization consulting

Continuous enhancements via IBM TRs

Improved free-form syntax

Better SQL integration

More modern API libraries

Gradual modernization of legacy RPG/400 apps

Cross-platform applications

Front-end UI development

Cloud-native microservices

Real-time high-frequency streaming

Organizations without IBM i infrastructure

RPG IV is IBM’s modern enterprise language for IBM i.

Highly optimized for business logic and transactional workloads.

Deeply integrated with Db2 and the IBM i OS.

Supports modular, maintainable development via ILE.

A cornerstone of many mission-critical enterprise systems.

Is RPG still used? -> Yes, widely in enterprise IBM i systems.

Does RPG support free-form code? -> Yes, fully modern free-form.

Can RPG create APIs? -> Yes, via IWS or YAJL.

Is RPG portable? -> No, platform-specific.

Does RPG integrate with SQL? -> Yes, embedded SQL is supported.