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We're a place where InterSystems IRIS programmers learn and share, stay up-to-date, grow together and have fun!

The InterSystems Certification Team is building an InterSystems TrakCare Reports certification exam and is looking for Subject Matter Experts (SMEs) from our community to help write and review questions. You, as a valued InterSystems community member, know the challenges of working with our technology and what it takes to be successful at your job. A work assignment will typically involve writing 15 assigned questions and reviewing 15 assigned directly to you.

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Article
· Jan 28, 2024 3m read
Fhir-HepatitisC-Predict

Processing FHIR resources with FHIR SQL BUILDER to predict the probability of developing hepatitis C disease

With the development of technology, the medical industry is also constantly advancing, and humans often pay more attention to their own health,
By learning and processing datasets through computers, diseases can be predicted.

Pre condition: Ability to use FHIR and ML
Firstly, our dataset is obtained from kaggle and transformed into FHIR resources based on patient gender, age, ALP or ALT, and imported into the FHIR resource repository

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We recently published a new White Paper on the use of reporting nodes ("asynchronous reporting mirror members" in full) in a mirrored environment. More and more customers are looking into this mechanism as a quick and easy way to set up a copy of their production data that stays current, yet can be used for analytical querying or heavy-duty reporting workloads without impacting the source system. Read the White Paper here.

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Question
· Oct 10, 2022
hs_err_pid log files

Hi Guys,

I'm getting a lot of hs_err_pid.mdmp & hs_err_pis.txt error files in the path where Cache.DAT in located and as I googled these seems to be Java error files and I'm wondering what this has to do with Ensemble, and is it alright to just delete them?

Thanks

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Discussion
· May 13, 2021
Shout out to the Dev Community !

Hello All,

Just wanted to acknowledge the fact that this community has become a great resource for help. I have had many wonderful people helping me out with my questions in last couple of weeks. Thank you to all of you :)

Regards,

Utsavi

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Ease into the new year with the latest content from InterSystems Learning Services! Get info on:

  • How to get hands-on with Docker containers and InterSystems IRIS®
  • Designing healthcare productions with InterSystems IRIS for Health™
  • A new certification exam for InterSystems IRIS Core Solutions Developer Specialists
  • Improved UX with InterSystems documentation
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While starting with Intersystems IRIS or Cache, developers often encounter three core concepts: Dynamic Objects, Globals & Relational Table. Each has its role in building scalable and maintainable solutions. In this article, we'll walk through practical code examples, highlight best practices, and show how these concepts tie together.

1. Working with Dynamic Objects:

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Hi fellow developers!

Curious if you guys use CreatedAt and LastUpdated properties in your classes?

Created to stamp when the record was created and LastUpdated when it was last updated. Where it can be useful - almost everywhere )) I find it convenient in records sorting (e.g. by creation or last update), in sync (with other systems), and so on, for better analytics.

Do you use it all the time for all the classes?

If don't, why not? What do you use instead?

What property type do you use - %TimeStamp? %DateTime?

What is the best practice to have CreatedAt filled automatically during creation and LastUpdated on every successful save (guess it could be in %OnSave)?

Please share your experience /thoughts?

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Question
· Jun 19, 2025
Namespace vs database

I'm confused about the differences between a namespace and a database.

I understand that a database is a single IRIS.DATA file in a directory in the os hosting IRIS.

What is the difference between a namespace and a database?

Can I write data into a database without specifying a namespace?
If so how do I write to a particlar DB in objectscript?

Does a database have to be in a namespace?
Can a database be in more than one namespace?

Can a namespace have only one 'routine' database and only one 'data' database?

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Article
· May 29, 2025 8m read
Integrate with Google Forms

Google Forms is the most popular solution on the market for collecting data, answering questionnaires and quizzes. So, it is the ideal solution for collecting patient data and responses in a practical way, without the need to expand or develop systems. In this article, I will detail how to create an account on Google Cloud, register the application that will consume the Google Forms API, generate the service user necessary to consume the API and finally perform actions to create new forms and collect data filled in them in an automated way in embedded Python and IRIS.

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Hi Developers,

Start watching our latest video on InterSystems Developers YouTube:

North West London Integrated Care System Go Live with Health Connect Cloud @ Global Summit 2023

https://www.youtube.com/embed/YSEXYAIKzio
[This is an embedded link, but you cannot view embedded content directly on the site because you have declined the cookies necessary to access it. To view embedded content, you would need to accept all cookies in your Cookies Settings]

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Question
· Dec 4, 2023
Custom Application Metric

I made a custom application metric, imported it to the USER namespace and used:

set status = ##class(SYS.Monitor.SAM.Config).Add.ApplicationClass("historymonitor.errorSensor", "USER")

to add it. When I do 'w status' it returns 1 so it is added but I still can't see the custom metric in the api/monitor/metrics endpoint. Even though I added %DB_USER in the application roles for api/monitor.

Does anyone know where the problem might be that the metrics endpoint still doesn't show my metric?

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Hi there,

I want to use regex in my code, and I saw that the %Regex.Matcher class contains a property "OperationLimit" that you can also set to a number of steps that the regex engine should take maximum in analysing a given string. So far so good.

I tried to set the property with the function OperationLimitSet() to a silly value like 3. In 3 steps only very few regex should be executed, right? But what I found is that my regex always comes up with a solution. Here is what I did:

First I initialised my %Regex.Matcher.

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If you hold the InterSystems HL7 Interface Specialist certification, you can potentially get recertified and have your certification expiration date extended by five years by beta testing our new InterSystems HL7 Interface Specialist Recertification project. The project includes hands-on exercises to validate core skills for developers who use InterSystems products to build and test HL7 v2.x productions.

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We’ll be at the Global Summit in June! If you’re planning on attending please come and say hi to us in the Partner Pavilion. Just a warning, our brand might look a little different from what you’re used to 👀

We’re looking forward to catching up with everyone and hearing what you’ve been up to since 2019. If you would like to book a meeting or join our User Group Session, email laurelj@georgejames.com. We hope to see you in Seattle!

 

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