Learn RPG-IV-AS400 with Real Code Examples

Generating daily sales reports from DB2 tables

Processing payroll transactions with RPG IV

Order management system integrating with inventory DB2 files

Batch updates of customer records with validation

Service program to provide reusable calculation procedures

Check compilation errors using IBM i compiler messages

Validate DB2 file existence and access privileges

Test procedure outputs independently

Debug runtime errors using STRDBG on IBM i

Monitor batch job logs for failures

Compile and test individual procedures

Validate DB2 queries and updates

Test interactive screen programs

Simulate batch processing jobs

Debug using IBM i STRDBG and message logs

Compile to production libraries on IBM i

Batch jobs scheduled with CL or job scheduler

Service programs linked to multiple programs

Interactive programs deployed for user access

Object versioning through library management

RPG IV / RPGLE compiler on IBM i

SEU / RDi (Rational Developer for i) IDEs

DB2 for IBM i

CL programs for batch control

Service programs and modular libraries

DB2 database queries and updates

CL programs for job scheduling

Interactive display files for screen programs

External systems via APIs or data transfer

Batch processing and reporting pipelines

Reuse service programs across projects

Leverage free-form syntax for readability

Modularize code to simplify maintenance

Batch repetitive processing tasks

Document DB2 queries and program interfaces

Learning legacy fixed-format syntax

Debugging complex multi-module programs

Optimizing DB2 access for high-volume transactions

Integrating batch and interactive workflows

Maintaining legacy systems alongside modern IBM i updates