March 3, 2021
- LEAD ARTICLE: SQL 101: A Data Definition Language Hands-on Tour, Part 7
- FEATURED ARTICLE: ILE RPG Tutorial: Using CALLP to Call an ILE Program
- NEWS HIGHLIGHT: IBM Power Systems Enhances Hybrid Cloud Capabilities with Red Hat
- FEATURED NEWS: System i Developer Announces 2021 Hands-On Workshops for IBM i Developers
- WEBCAST: Node.js on IBM i Webinar Series Pt. 2: Setting Up Your Development Tools
- FEATURED VIDEO: Design an Invoice in 10 Minutes
- EVENT: RPG & DB2 Summit Lunch & Learn Series
Today’s TechTip is a two-for-one. I’ll talk about SQL’s OVRDBF replacement, ALIAS, and a simple yet dangerous SQL statement, DROP. Keep reading to find out more.
By Rafael Victória-Pereira
Let’s start with ALIAS. In a nutshell, we can say that ALIAS is Override Database File (OVRDBF) made simple, practical, and permanent.
If you ever used the OVRDBF CL command, then the functionality provided by ALIAS should be easy to grasp; it’s exactly the same! If you never used OVRDBF, it’s a way to use an alternate name for a file or, most importantly, a member of a file. This is especially important because you can’t specify a file member in SQL. The file member concept is an IBM i peculiarity, and SQL has no idea how to handle it. Fortunately, the CREATE ALIAS SQL instruction allows you to create a name for a given member of a file.
Learn how to use a prototyped call, an alternative to an ILE RPG sub-procedure, to call one program from another
by David Shirey
Editor’s Note: This article is excerpted from chapter 8 of 21st Century RPG: /Free, ILE, and MVC, by David Shirey.
In some situations, when using an ILE sub-procedure in your program, you may want to write the sub-procedure up as a small program and then call it from another program. Granted, that is not technically a sub-procedure, but we will let that go for the moment and concentrate on the call of one program by another.
Business users want new applications now. Market and regulatory pressures require faster application updates and delivery into production. Your IBM i developers may be approaching retirement, and you see no sure way to fill their positions with experienced developers. In addition, you may be caught between maintaining your existing applications and the uncertainty of moving to something new.
In this white paper, you’ll learn how to think of these issues as opportunities rather than problems. We’ll explore motivations to migrate or modernize, their risks and considerations you should be aware of before embarking on a (migration or modernization) project.
Lastly, we’ll discuss how modernizing IBM i applications with optimized business workflows, integration with other technologies and new mobile and web user interfaces will enable IT – and the business – to experience time added value and much more.
More than ever, there is a demand for IT to deliver innovation.
Your IBM i has been an essential part of your business operations for years. However, your organization may struggle to maintain the current system and implement new projects.
The thousands of customers we've worked with and surveyed state that expectations regarding the digital footprint and vision of the companyare not aligned with the current IT environment.
Have you been wondering about Node.js? Our free Node.js Webinar Series takes you from total beginner to creating a fully-functional IBM i Node.js business application.
Part 1 will teach you what Node.js is, why it's a great option for IBM i shops, and how to take advantage of the ecosystem surrounding Node.
In addition to background information, our Director of Product Development Scott Klement will demonstrate applications that take advantage of the Node Package Manager (npm).
Forms of ransomware has been around for over 30 years, and with more and more organizations suffering attacks each year, it continues to endure. What has made ransomware such a durable threat and what is the best way to combat it? In order to prevent ransomware, organizations must first understand how it works.
In this webinar, two experienced cybersecurity professionals go in-depth on the ransomware attack cycle, the need to protect every endpoint, and how to spot signs of infection before data is encrypted by malicious actors.
This webinar also reveals the current state of ransomware with 2021 Malware Survey results and provide effective security strategies for prevention.
Watch this webcast now.
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