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MC Press Articles

Bluemix: A Viable Option for Power Customers

by Victoria Mack August 19, 2016 0 Comments

Just what is Bluemix, and what could it mean for you? An interview with an IBMer reveals the answers.

steve pitcherWritten by Steve Pitcher

Last week, I sat down with Adam Gunther, Director of Cloud Developers Services at IBM, to talk about IBM Bluemix. I told Adam I wasn’t a developer up front, but I wanted him to explain just exactly how my small-to-medium-sized business with an investment in on-premises infrastructure could really take advantage of Bluemix. I wasn’t disappointed.

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Midrange MQ in an Open-Source World

by Victoria Mack August 19, 2016 0 Comments

MQ on IBM i continues to adapt to the needs of modern IT environments.

andrew schofieldWritten by Andrew Schofield

IBM MQ has been a familiar part of the corporate IT landscape for over 20 years. It’s been through a few name changes, but the fundamental idea of using asynchronous messaging to decouple communication between applications is as important now as it has ever been. Of course, over such a long period of time, there have been huge changes—in particular, the way that developers work using the Internet and open-source, and the rise of cloud computing. Therefore, we at IBM are doing many things in MQ to make sure that existing systems remain relevant and able to interact with the latest tools and platforms.

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Using Scope in Linear-Main Programs to Create More Stable Applications

by Victoria Mack August 19, 2016 0 Comments

Linear-main RPG programs eliminate the RPG logic cycle and add new levels of variable scoping to protect your code from bugs down the road.

brian mayWritten by Brian May

While I am no expert in the RPG logic cycle, I have had to deal with it in older applications over the years. Most RPG developers have dealt with a logic cycle program at least once. I can honestly say I have never written a new logic cycle program, but I have seen others in the community doing it. This article is not intended to start a religious war about cycle programming. There are some who will never give it up. Instead, this article will demonstrate how to create a program without the logic cycle and concentrate on what I think is a very useful benefit to using linear-main procedures in program.

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SQL 101: Date-Related Functions, Part 3 - Extracting Information from Dates

by Victoria Mack August 19, 2016 0 Comments

This article continues the date-related functions discussion, introducing a few more simple but extremely useful SQL functions: DAYOFWEEK, WEEK, QUARTER, DAYOFYEAR, and MIDNIGHT_SECONDS. Do you have time for some date fun?

rafael victoria preiraWritten by Rafael Victória-Pereira

Let me start with a quick flashback: an RPG Academy TechTip published in October 2015, explaining how to create an RPG function to calculate the day of the week of a given date stirred things up quite a bit. Some readers complained this kind of function was totally unnecessary, because SQL is better equipped to do this type of thing and so on. My reply was that I’d get to a point in the SQL 101 series in which I’d cover the “SQL version” of that particular function, named Clc_DayOfWeek.

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