Leave a ticket on the helpdesk if you cant find what you need or have a request for a new lesson or blog
IBM Control Language has remained virtually unchanged over the years. When the IBM AS400 was replaced by the IBM iSeries, fifteen years ago, a few little tweaks were added to CL but it remained remarkably unchanged. If it’s not broken don’t fix it. A few years later the sun set on the iSeries machine and …
Download Install or Upgrade CNX Valence Fresh in my email this morning, I had a notice from the propellor heads at CNX that a new fixpack was released. This includes a number of enhancements that I have requested so I’m intrigued to see it in action. Sounds like an interesting update to Valence! Looking for …
WRKACTJOB is DSPACTJOB on steroids Every process that runs on an IBM i System is a #JOB. Using the WRKACTJOB command is pretty intuitive, since you are working with all the active jobs on the system you are literally asking your IBM i to show you all the active processes and allow you to view, …
No – RRN is not unique (unless we force it to be and don’t care if disk is wasted) IBM i Tables (aka AS400 files) have a unique number assigned to every row in the table. This number is called a Relative Record Number, or RRN. When a row is deleted the RRN is marked …
What happens when your TURNOVER Promotion form runs? A TURNOVER® for iSeries v100 form runs in several phases. Pre-run Processing: Phase I All preliminary processing is done including pre-run exits, pre-run commands, creation of working libraries, and so on. Promotion Processing: Phase II Source is copied, objects created or moved, folder objects promoted, data copied, …
AS400, IBM i, iSeries, Programming, RPG
How to use ‘Conditional Selection in RPGLE and CLLE’ Way back in 2008, I wrote this blog about how to do various condition selection in RPG. So, I suppose it time to modernize those code examples in modern RPGLE Free, tidy it up, and add the same code examples in CLLE. In RPGLE (and in …
Playing with a RPG Subfile Poking around on the filthiest corners of the IBM i Programmers internet this morning, I stumbled across someone else’s sample subfile template for an RPG program. This is quite an old-style RPG program (it looks like it’s from around 2012) but should still work well today. It looks quite nice, …
What is a 5250 Terminal Emulator? In a previous blog about 5250 Emulators: The IBM i System (aka i5 aka iSeries aka AS/400) uses something called 5250 to stream its data to a terminal, often called a green screen. You’ve seen these clunky old terminals in black and white sci-fi movies – well we still …
AS400, IBM i, iSeries, Programming, RPG
Built-In Functions in RPGLE – %EOF & %FOUND %EOF(filename) This built-in function is used to detect end-of file, beginning of file, or subfile full conditions while performing a file operation. Rather than using indicators, we should use %EOF to check if the end of file is reached. %EOF returns ‘1‘ if end-of file, beginning of file, …
AS400, IBM i, iSeries, Programming, RPG
Whenever I find myself editing some old RPG3 or RPG400 code, I try to spend a coffee* cleaning the code up to a more modern and readable form. * A ‘coffee’ is the amount of time it takes to drink a regular cup of brew. This is slightly shorter than the English standard time unit …
Use the Retrieve Job Attribute (RTVJOBA) command to snaffle the job’s run type from the attributes. Seems pretty obvious right? One little niggle was that the RTVJOBA passes back a char(1) value for the jobtype where ‘0’ means batch and ‘1’ means interactive. But, I want to be able to neatly compare a logical value …
AS400, IBM i, iSeries, Programming, RPG
Developerworks Connections is dead As I was waffling this morning about the sad demise of IBM Developerworks Connections Wiki – here is another excellent article that discusses various extensions to IBM Rational Developer for IBM i – How to Extend RDi (#RDi) So here it is, re-posted before IBM can hide this wonderful source of …