• Guru: Dynamic Arrays Come To RPG – Limitations, Circumventions, And More

  October 12, 2020 Jon Paris

  In my first two tips in this series I covered the basics of automatic sizing arrays and variable sized arrays. In this final part am going to discuss some of the current limitations in this support and the facilities IBM has put in place to help circumvent them.

  IBM publishes an extensive list of the limitations, but in normal usage only a couple present “real” restrictions in practical terms. If you are curious though, you can find the full list here.

  Limitations

  The first limitation to bear in mind is that, currently, only top-level variables can be defined …

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• i2Rest Offers Native API Alternative to IWS

  August 19, 2020 Alex Woodie

  IBM i shops that want to expose their RPG applications as industry standard Web services have a few options to choose from. One solution they should keep on their list is i2Rest, which is a native ILE application that exposes RPG using modern OAuth2 and OpenAPI standards.

  We first came across Alexei Baranov’s work back in 2012, when he was involved in the port of the SVN client to IBM i while working at a Moscow, Russia-based consulting firm. Soon thereafter, Baranov started working on developing Web services tools for IBM i.

  The first version of his new Web …

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• IBM Wheels And Deals With Solution Edition Booster Pack

  June 8, 2020 Timothy Prickett Morgan

  A few weeks ago, we told you about the double memory and double I/O request for price quote (RPQ) special deals that IBM quietly rolled out in April without putting out any announcement letters and that are still in effect until June 30. So consider this a reminder that these deals are still out there and now is a good time to invest in new Power9 iron if you want to pay less for it than you otherwise might.

  But that is not all you can get. As it turns out, Big Blue is revamping its IBM i Solution Edition …

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• Guru: Graphical Debugging Through ACS

  June 8, 2020 Ted Holt

  ACS (IBM i Access Client Solutions) keeps getting better and better. I can’t stay up-to-date with the latest releases of all the software I use, but I do everything I can to keep up-to-date with ACS. One of the handiest of the relatively most recent releases is the ability to access IBM i Debugger through Run SQL Scripts. If you haven’t tried IBM i Debugger, you’re missing out.

  IBM i Debugger (a.k.a. System Debugger) is part of the IBM Toolkit for Java. It’s graphical, and it makes the green-screen debugger (STRDBG) look like something built by cavemen. To show you …

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• Welcome To The ‘Riehl’ World: Live, Hands-On IBM i Training

  May 18, 2020 Alex Woodie

  IBM i shops don’t have a ton of options available when it comes to online IBM i education these days. If you’re in the market to improve your skills, one of the outfits that should be on your shortlist is The 400 School, which is one of the few places left that offers hands-on IBM i education, according to the company’s founder and president, Dan Riehl.

  Riehl has had the kind of IBM midrange career that younger folks arriving on the platform today can only dream of. He has founded companies, written books, worked as a security consultant and …

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• What’s New In Open Source With The Latest TRs

  April 27, 2020 Alex Woodie

  New technology is exciting. And when it can help you run your business more profitably or efficiently, well, it becomes very exciting. With IBM i, the open source community is arguably the biggest contributor of new technology to the platform. IT Jungle recently checked in Jesse Gorzinski, the IBM i open source architect, to hear how the open source story has improved with the recent technology refreshes.

  Arguably the biggest open source-related enhancement with IBM i 7.4 TR2 and 7.3 TR8 revolves around a change in RPM, the new delivery method that IBM adopted two years ago to distribute new …

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• Guru: Practicing Safe Hex in RPG

  March 2, 2020 Jon Paris

  In this tip I’m going to address a question that arises regularly on RPG-oriented Internet lists, namely: “Is there an easy way to convert a character string to its hexadecimal equivalent?”

  One answer, of course, would be to write your own routine using lookup tables, but there is a far easier way. We can take advantage of the system’s hex MI APIs. These were originally surfaced for use by C and C++ but, thanks to the joys of ILE, can be used by any ILE language. Not only that, RPG’s prototyping support makes them really easy to use. In fact, …

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• Guru: End Of Year Feedback

  December 2, 2019 Ted Holt

  The year has flown by. Before we know it, it will be 2020. The century is flying by, too. We’ve almost consumed a fifth of it. That seems like a good excuse to see what we might glean from some of your feedback. It’s been a while. More to come next week!

  Several readers wrote regarding the need to remove hard-coded values from programs. Jim brought up the problem of compile-time tables and arrays.

  I find cases where data is hard coded (state names, product categories are a few examples) for tables or arrays in dozens of programs.

  I wish …

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• Guru: RDi Code Coverage Without SEPs

  August 12, 2019 Susan Gantner

  My last Guru tip provided an introduction to RDi’s Code Coverage tool that you can use to determine how complete your tests are. In that tip I discussed how to run it using Service Entry Points (SEPs). In this follow-on tip, I’ll continue the exploration of this tool with some additional details plus introduce you to an alternative way to run a Code Coverage session.

  Before going into the alternative approach to running Code Coverage, there are a few details I didn’t mention in the first tip.

  I mentioned that Code Coverage uses the debug engine. What I didn’t mention …

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• Guru: How Thorough Was Your Last Test? RDi Code Coverage Can Tell You

  July 22, 2019 Susan Gantner

  When you’ve made changes to one or more programs, you test all the changes – right? And, of course, you also test all the rest of the code just to make sure you didn’t break anything else. Did you do that with your last set of changes? Did you test ALL the code? Enabling you to answer that last question is what RDi’s Code Coverage facility is all about.

  This is an introduction to Code Coverage — the basics of both why and how to use it. Before I go into how to run it, it may pique your interest …

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