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InterSystems FAQ rubric

By default, the order of columns in a table is determined automatically by the system. To change the order, explicitly set the order for each property using the property keyword SqlColumnNumber when defining the class.

Example:

Property Name As %String [SqlColumnNumber = 2];

Please see the documentation below.

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Question
· Mar 4
Message Count

Looking for a SQL query or any other method to find the Unique/distinct message counts for all productions or at least per production namespace within a given time frame. For e.g TimeCreated = January 2025 (Whole month)

I have used the following, but its not restricting the numbers based on the TimeCreated filter. Every time a new message is processed by system, its added to the total. I am running the query in today's date

Select Sum(MsgCount)

From

(Select DISTINCT TargetConfigName, count(DISTINCT SessionID) as MsgCount

FROM ENS.MessageHeader

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The InterSystems platforms have always offered dynamic documentation of the packages and classes in a namespace, a feature known informally as Documatic. But what if you need to publish this class reference information on a website without requiring the site to be connected to an IRIS server containing the actual classes?

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Question
· Nov 24, 2024
Intersystems REGEX engine

I am working on a product that uses REGEX and matches it.
The regex is tested both on the client-side (using the JavaScript REGEX engine) and both on the server-side.

But I couldn't find one word about the way intersystems parses the regex, It is quite elementary to state which which engine it works with.

from what I could gather from early implementations and such, the engine is based off PCRE, But I need to confirm this somehow, Can anyone give me a definitive answer, Is there any tool to test the regex other than writing it myself??

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Hi Community!

We hope you enjoyed our Developer Community AI sweepstakes and learned something new while interacting with our DC AI. Now, it's time to announce the winner!

https://www.youtube.com/embed/_4bbKTFgO58
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Who hasn't been developing a beautiful example using a Docker IRIS image and had the image generation process fail in the Dockerfile because the license under which the image was created doesn't contain certain privileges?

In my case, what I was deploying in Docker is a small application that uses the Vector data type. With the Community version, this isn't a problem because it already includes Vector Search and vector storage. However, when I changed the IRIS image to a conventional IRIS (the latest-cd), I found that when I built the image, including the classes it had generated, it returned this error:

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Article
· Nov 11, 2024 3m read
EduVerse: Accessible Learning Assistant

🌍 Inclusion & Innovation in Education 🌍
Our project reimagines learning for all students, with a focus on accessibility and interactive experiences. Built with the goal of making education engaging and inclusive, the tool is designed to support students of all abilities in learning complex material in an intuitive way.

💡 What It Does
This educational app transforms lesson presentations into interactive study sessions:

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This article outlines the process of utilizing the renowned Jaeger solution for tracing InterSystems IRIS applications. Jaeger is an open-source product for tracking and identifying issues, especially in distributed and microservices environments. This tracing backend that emerged at Uber in 2015 was inspired by Google's Dapper and Twitter's OpenZipkin. It later joined the Cloud Native Computing Foundation (CNCF) as an incubating project in 2017, achieving graduated status in 2019. This guide will demonstrate how to operate the containerized Jaeger solution integrated with IRIS.

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Hello InterSystems EHR community,

InterSystems Certification is currently developing a certification exam for InterSystems EHR Reports specialists, 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 June 30, 2025.

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Hello,

Very much keen if we could gather the per namespace and business component utilization of InterSystems cache server.

For e. I have a PRD server where its CPU utilization is at max all the time and I want to know which namespace and its business process (service/Operation/Process) is utilizing what number of CPU and memory.

** I can get the CPU and Memory utilization per Cache.exe and PID, but not able to get the Namespace and ConfiguratioName to which that particular PID belongs.

Thank you,

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Are you curious about how to run Python scripts directly in your InterSystems IRIS or Caché terminal? 🤔 Good news it's easy! 😆 IRIS supports Embedded Python, allowing you to use Python interactively within its terminal environment.

How to access the Python Shell?

To launch the Python shell from the IRIS terminal, simply run the following command:

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From the previous article, we identified some issues when working with JSON in SQL.

IRIS offers a dedicated feature for handling JSON documents, called DocDB.

InterSystems IRIS® data platform DocDB is a facility for storing and retrieving database data. It is compatible with, but separate from, traditional SQL table and field (class and property) data storage and retrieval. It is based on JSON (JavaScript Object Notation) which provides support for web-based data exchange. InterSystems IRIS provides support for developing DocDB databases and applications in REST and in ObjectScript, as well as providing SQL support for creating or querying DocDB data.

By its nature, InterSystems IRIS Document Database is a schema-less data structure. That means that each document has its own structure, which may differ from other documents in the same database. This has several benefits when compared with SQL, which requires a pre-defined data structure.

The word “document” is used here as a specific industry-wide technical term, as a dynamic data storage structure. “Document”, as used in DocDB, should not be confused with a text document, or with documentation.

Let's explore how DocDB can help store JSON in the database and integrate it into projects that rely solely on xDBC protocols.

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InterSystems is proud to sponsor NUS Health Hack 2025 and invite innovators, developers, startups and health tech professionals to join this exciting digital health tech hackathon!

Organized by the National University of Singapore - Yong Loo Lin School Of Medicine, this hackathon will take place from February 8th to March 29th, 2025, and will bring together an incredible mix of healthcare professionals, developers, students, startups and tech companies driving innovation in the industry.

Why Join?

Make an Impact: Solve real-world healthcare challenges.
Network: Collaborate with like-minded professionals, innovators, and industry leaders.
Get Support: Access guidance from mentors throughout the 4-week development phase.

InterSystems is providing access to our Vector Search technology, which participants can leverage for their projects. Plus, our tech mentors will be available to offer support throughout the event. Learn more about the InterSystems challenge and prizes here.

No alt text provided for this image

How It Works

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Hello,

Is there a single ObjectScript operator or method to concatenate two %DynamicArrays?

I'm looking for something that will do the following:

set arr1 = [ 1, 2, 3 ]
set arr2 = [ 4, 5, 6 ]
set arrcombined = arr1.%Concatenate(arr2)

or

set arrcombined arr1_arr2

With end result:

zw arrcombined
arr1=[1,2,3,4,5,6]  ; <DYNAMIC ARRAY>

I can iterate and %Pop over the 2nd array and %Push each popped entry to the 1st array, but I was looking for something more succinct.

Thanks in advance.

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I'm running a query, joining nine tables together. When I run it with a SELECT COUNT(*) I get about 200,000 rows. When I run the SELECT with the columns I want, I get about 2,700 rows. Is there something inherent with the queries that limits the result set size, or anything I can do to make sure I'm getting back all the results? Rather, than trying to run it about 100 times limiting all previously gotten accounts.

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Our goal on the Developer Community is to foster a high-quality, trustworthy, and original body of technical content created by and for developers. While AI tools like ChatGPT can be helpful in the writing process, we expect all published content to reflect authentic expertise and personal understanding. If you have any questions or wish to discuss your coding problem with an AI, consider using our Developer Community AI chat.

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Working on a project where I'm needing to make FHIR calls from my HealthConnect Interop production to Epic.

My issue is I'm not able to construct a valid JWT for the OAuth token retrieval that Epic will accept. I have the below code where I'm able to create a valid header and payload that I'm base64URL encoding and then trying to sign with my .pem private key file. However, Epic is not liking the signature portion of my JWT.

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InterSystems FAQ rubric

Mirroring only synchronizes database files.

To synchronize other files required for your application (CSP files, images, documents, etc.) between the two servers that make up the mirror set follow one of the approaches:

  1. Place those files on a shared disk by introducing a NAS or similar device
  2. Or use file sync software to synchronize files between two servers.
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Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

Security In the Cloud - Assuring a Secure InterSystems IRIS Cloud Overlay @ Global Summit 2024

https://www.youtube.com/embed/BGQG7gwBxZc
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