InterSystems Developer Community is a community of 22,930 amazing developers
We're a place where InterSystems IRIS programmers learn and share, stay up-to-date, grow together and have fun!

Our community is speaking — and you're invited to the READY 2025!
Members of the InterSystems Developer Community are getting Ready — and they’ve recorded short video messages just for you.

Find out why InterSystems READY 2025 is a must-attend event, what they're most excited about, and what makes this summit special — straight from the voices of our engineers, developers, tech advocates, and Community moderators.

▶️ Watch their stories. Get inspired. Join us in-person.

Kicking things off, hear from:

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It helps to remove special characters, such as non-utf-8 characters either control characters or unicode characters from text that is not printable or can't be parsed by downstream systems.

There is also $C(32) in this condition; sometimes NBSP appears in the text and it will not be recognized by TIE, but downstream it displays as "?".

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InterSystems Official
· May 21
InterSystems Platforms Update Q2-2025

We have a big update this quarter.

  • RHEL 10 was released yesterday, read on for what that means for you
  • 2025.3 will use OpenSSL 3 across all operating systems SUSE 15 sp6 will be the minimum OS for orgs using SUSE
  • The minimum CPU standards are going up in 2025.3
  • Older Windows Server operating systems will no longer be supported in 2025.3

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Hello IRIS community,

InterSystems Certification is currently developing a certification exam for InterSystems IRIS SQL professionals, and if you match the exam candidate description given below, we would like you to beta test the exam! The exam will be available for beta testing starting May 19, 2025.

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Hi Community!

We’re excited to announce that several winners of the InterSystems AI Programming Contest have been invited to showcase their projects at the Tech Exchange during InterSystems Ready 2025!

Join us on Wednesday, June 25, to explore innovative, real-world solutions built with InterSystems IRIS, AI, LLMs, and intelligent agent technologies — directly from the developers who created them:

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Here’s a special thread where you can tell a bit about yourself — because connecting and learning more about each other is what makes this community great 💬✨

We had a similar discussion on our old Global Masters platform — you might remember! We’re excited to bring that networking opportunity back to the community.

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Article
· May 2 3m read
Minify XML in IRIS

In a project I'm working on we need to store some arbitrary XML in the database. This XML does not have any corresponding class in IRIS, we just need to store it as a string (it's relatively small and can fit in a string).
Since there are MANY (millions!) of records in the database I decided to reduce as much as possible the size without compressing. I know that some XML to be stored is indented, some not, it varies.

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I'm sure most of you are familiar with utility %SYS.MONLBL that is crucial when analysing code performance bottlenecks. It allows you to select a number of routines that you want to monitor at runtime and also specify what process(es) you want to watch. BUT, what if you do not know exactly, what process would execute your code? This is true with many web based (CSP/REST) applications today. You want to minimize the resource utilization on your production system that needs analysis. So, how about doing a small tweak?

1. Define an INC file with these macros:

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For 15 over years I have been playing with ways to speed up the way I use InterSystems systems and technology via AutoHotkey scripting. As a power keyboard user (I avoid my mouse when possible) I found it very helpful to set up hotkeys to get to my most frequently accessed systems and research utilities as quickly as possible. While I have used this approach for many years, this is the first time that I am introducing my approach and a customer-facing hotkey script to the D.C. and OEx...

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Regardless of whether an instance of IRIS is in the cloud or not, high availability and disaster recovery are always important considerations. While IKO already allows for the use of NodeSelectors to enforce the scheduling of IRISCluster nodes across multiple zones, multi-region k8s clusters are generally not recommended or even supported in the major CSP's managed Kubernetes solutions. However, when discussing HA and DR for IRIS, we may want to have an async member in a completely separate region, or even in a different cloud provider altogether.

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An extension “extends” or enhances a FHIR resource or a data element in a custom way. The extension can be added to the root of a resource, such as “Patient.ethnicity” in US Core profile, and they can be added to individual elements such as HumanName, Address or Identifier.

Did you know that you can also add an extension to a primitive data type?

Primitives usually store a single item and are the most basic element in FHIR. For example: "Keren", false, 1234, 12/08/2024 etc.

For example, the patient resources might look like this:

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Here at InterSystems, we often deal with massive datasets of structured data. It’s not uncommon to see customers with tables spanning >100 fields and >1 billion rows, each table totaling hundred of GB of data. Now imagine joining two or three of these tables together, with a schema that wasn’t optimized for this specific use case. Just for fun, let’s say you have 10 years worth of EMR data from 20 different hospitals across your state, and you’ve been tasked with finding….

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Hi Community!

Check out the new video on how to build the frontend UI by prompting it in lovable or (potentially) any spec first REST API in InterSystems IRIS:

📺 Prompt the frontend UI for InterSystems IRIS with Lovable

🗣 Presenter: @Evgeny Shvarov, Senior Manager of Developer and Startup Programs, InterSystems

https://www.youtube.com/embed/Oo4OBfTf4d4
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One of the challenges of creating a DICOM message is how to implement putting data in the correct place. Part of it is by inserting the data in the specific DICOM tags, while the other is to insert binary data such as a picture - In this article I will explain both.

To create a DICOM message, you can either use the EnsLib.DICOM.File class (to create a DICOM file) or the EnsLib.DICOM.Document class (to create a message that can be sent to PACS directly). In either case, the SetValueAt method will allow you to add your data to the DICOM tags.

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Article
· May 12 7m read
An Overview of Database Degrade

Introduction

Hello! In this article, I will be discussing database degrade, a type of data integrity issue one can face when using IRIS. First, I will be going over a review of the structure of IRIS databases. I'll then discuss how database degrade can manifest and common causes of degrade issues. I'll then conclude with general tips we give our customers about how to prevent or prepare for database degrade issues.

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Hi, I am unsure how to remove this restriction; when I am performing dynamic SQL using ##class(%SQL.Statement).%ExecDirectNoPriv(, .query, args...)

It works fine, but the moment I add specific properties from the persistent class I am performing the select on into the WHERE clause, I get: ERROR #5540: SQLCODE: -99 Message: User UnknownUser is not privileged for the operation. Despite using %ExecDirectNoPriv, I've tried with prepared statement as well, exact same situation.

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