DB2 for i: the database hiding in plain sight
Every physical file you have ever defined in DDS, every CHAIN and READ in your RPG programs, every logical file […]
DB2 for i
CL Commands
CL commands for RPG programmers: the system layer you cannot ignore
If you write RPG, you already use CL whether you realise it or not. Every time you submit a job,
RPG Programming
Embedded SQL in RPGLE: query your data the way you think about it
You already know how to read files with READ and CHAIN. They work. But the moment your query involves a
RPG Programming
Subprocedures and Service Programs in RPGLE: write once, call everywhere
Subprocedures let you break logic into reusable blocks inside a single program. Service programs take it further — compile your procedures once and share them across every program on the system.
RPG Programming
Free-format RPG: A practical guide for intermediate developers
You already write RPG. Free-format does not replace what you know — it removes the straitjacket. No more counting columns, no more cryptic opcodes. Here is how to make the switch.
IBM i Modernization: Cut Legacy AS400 Costs by 30%
A practical enterprise guide to IBM i modernization covering APIs, RPG transformation, AI-assisted modernization, and legacy system evolution.