PowerLab400
Articles Guides Recipes Tools Software Reference Releases Jobs Other blogs
Log in

Categories

All Software Hardware RPG Other Database System Security

RPG

3 articles

Featured RPG

Migrating from RPG III to RPG IV

The automatic conversion works and is the right starting point. The real work begins afterwards, and it pays to know in advance where it gets stuck.

Read the article
27 Jul 2026 RPG

An introduction to free-form RPG

Free-form is not RPG dressed up as another language: it is the same RPG freed from the columns. What really changes once you stop counting positions.

RPG

SQLCODE -305: the FETCH that stops on NULLs

Eighty-two COALESCEs are not the answer. What is left in the variables when a FETCH meets a NULL, and why ALWNULL has nothing to do with it.

View all articles

Most read

  1. 1 Project4i: what if sources had a project?
  2. 2 Administering an IBM i: how the system works
  3. 3 IBM i 7.6 TR2 and 7.5 TR8: what is in them
  4. 4 IBM i is not an obsolete system: the objections one by one
  5. 5 Configuring IBM i Access Client Solutions

Stay updated

A note when a new article or a new tool goes up. Nothing else.


PowerLab400

Articles, guides and tools for IBM i and AS/400.

LinkedIn

Community

Home About us Contact Privacy and cookies

Categories

Software Hardware RPG Other Database System Security

Contact

studio@powerlab400.com Log in

© 2026 PowerLab400

Resources for IBM i / AS400