I joined InterSystems less than a year ago. Diving into ObjectScript and IRIS was exciting, but also full of small surprises that tripped me up at the beginning. In this article I collect the most common mistakes I, and many new colleagues, make, explain why they happen, and show concrete examples and practical fixes. My goal is to help other new developers save time and avoid the same bumps in the road.

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One thing I’ve learned over the years is that no matter how polished your application logic is, database performance will eventually make or break the user experience. Working with InterSystems IRIS, I recently ran into this firsthand. A client of ours was building a reporting dashboard that worked flawlessly during testing—but once their production dataset grew into the millions, response times slowed to a crawl.

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I would like to learn about the binary and document reference FHIR Resources. For the PDF data stored in those resources. But I think Binary Resource for the Document PDF stored in FHIR, so this resource is best for it. So sometimes Large PDF 15-page (~35md) data converts into base64 then data length is ~50 lac charecters length of base64binary data. this data store in Binary Resource on data field https://www.hl7.org/fhir/R4/binary.html follow this url this resource used in my case.

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A benefit of using Doxygenerate is that Doxygen does more than just HTML output. Tweak the Doxyfile that tells Doxygen what to do and you can easily create a PDF. Our example MARINA application yielded a 524-page PDF. Here's what page 94 looks like:

You can browse the whole file here.

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Hi Community,

The new video from Global Summit 2019 is available on InterSystems Developers YouTube:

Reintroducing the Operational Data Store

https://www.youtube.com/embed/Bjx90-eAMdU
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I have been walking through this with a few team members and as such I thought there might be others out there who could use it, especially if you work with HL7 & Ensemble/HealthConnect/HealthShare and never venture out past the Interoperability section.

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We currently have Business Operation that we built to use the EnsLib.SQL.OutboundAdapter so we can make Microsoft SQL Server Stored Procedure calls. The BO is attached to a Java Gateway Service.

Some of our MS SQL Databases have moved from being OnPrem to Azure Cloud. We have started seeing where we are receiving errors on the BO saying that we cannot connect to the Azure Database, but we never receive a Disconnect from the Azure Database.

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I am trying to help another group within our organization access a SQL Table that I have created to populate Epic Department Data within our environment and came across the ability to use SQL Seach REST Interface using iKnow.

However, I am having issues trying to get it to work via POSTMAN before I hand off the solution...

the POST URL... https://<servername>/api/iKnow/latest/TESTCLIN/table/osuwmc_Epic_Clarity.DepartmentMaster/search

where osuwmc_Epic_Clarity.DepartmentMaster is the table

In the body...

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Often times when working with FHIR data, for example with IRIS For Health, you'll find it useful to create a custom FHIR operation. The FHIR Standard comes with a set of defined operations (such as $everything) but a custom operation comes in handy when you need to create some extra functionality that goes beyond the set of standard FHIR operations.

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We have a task that runs objectscript code to load data into a linked external table. After upgrading from 2024.1 to 2025.1, the load is throwing an error, with error code -400, and no error message. The data DOES get loaded into the external table in its entirety, so with no meaningful error message, its hard to determine what the issue is. The result is the same with and without the USING clause, so don't let that confuse you. We have logs of this statement succeeding before upgrade, and were able to get this statement to work in our production environment, which is still on version 2

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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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..Contains(source.{ORCgrp(x1).OBRuniongrp.NTEi2(x2):Comment(x3)},"(")&&..Matches(source.{ORCgrp(x1).OBRuniongrp.NTEi2(x2):Comment(x3)},"^[A-Z][0-9][0-9]$")

I want to do this to match strings such as X98. Community AI tells me this is correct but I get an error in testing. Specifically, this is the part causing the error;
..Matches(source.{ORCgrp(x1).OBRuniongrp.NTEi2(x2):Comment(x3)},"^[A-Z][0-9][0-9]$")


What do I need to change?

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I created a Custom Search Table that extends EnsLib.HL7.Search Table. I saved, compiled, and rebuilt the index however when I go into Message Search to try to use the Search Table, within the conditions the proper fields are not showing up that was defined. It is showing the fields from EnsLib.HL7.SearchTable. I did a build index on both EnsLib.HL7.SearchTable and OSU.HL7.SearchTable.

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Contestant

#InterSystems Demo Games entry


⏯️ Health Evolve: Transforming Unstructured Data

Did you know that 80% of healthcare data is stuck in unstructured formats such as fax? If you take a walk down to Mass General in Boston, you'll literally see a state-of-the-art MRI machine next to a fax machine. Healthcare keeps building incredible new technology but can't let go of legacy technology. We call this the "legacy modernization paradox". This short film follows a care manager at Blue Plan who spends her days doing chart reviews, reading faxes line-by-line, struggling to provide her members the care they need. Everything changes when Blue Plan pilots InterSystems Health Evolve, a solution that transforms her faxes into machine-readable FHIR data ready for AI and analysis. To access our fully working Text-to-FHIR prototype, visit HealthEvolve.de.

Presenters:
🗣 @Vishal Pallerla, Sales Architect, InterSystems
🗣 @Erica Song, Sales Engineer, InterSystems
🗣 @Louis Kabelka, Sales Engineer, InterSystems
🗣 Zelong Wang, Sales Engineer, InterSystems
🗣 John Murtha, Health Plan Executive, InterSystems

https://www.youtube.com/embed/FcL1u3Ir0jM
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Contestant

#InterSystems Demo Games entry


⏯️ Being READY to Tackle Healthcare Enterprise Challenges in a Few Clicks

Managed Cloud Solutions to Help Streamline Your Health Services.

This demo showcases composing several InterSystems Managed Cloud Services to solve various use-cases.

The video is actually built of 6 short chapters (each ~2.5 minutes long) showing each part of the story, demoing a different service.

You can watch each "chapter" individually if you're interested in a specific service, but there is value in viewing the whole composition and observing the full flow.

  • 0:00 Health Connect Cloud - Medical Device MQTT - HL7v2 for Hospital Operation Systems
  • 2:29 FHIR Server & FHIR Transformation Service - HL7v2 to FHIR & Repository for Regulation & Exchange
  • 5:21 FHIR SQL Builder - Providing standard relational access to FHIR data
  • 7:22 "FHIR IntelliChat" (see note below) - Natural human language chat with FHIR Server
  • 9:37 OMOP Solution - FHIR to OMOP transformation & OMOP database with OHDSI tools compliance
  • 12:54 InterSystems Data Fabric Studio for Health - Creating a multi data/app sources fabric

[Note the "FHIR IntelliChat" part is not an actual formal InterSystems service, it is just a demonstration of a possibility (based on this solution by @José Pereira) ]

Presenters:
🗣 @Tani Frankel, Sales Engineer Manager, InterSystems
🗣 @Keren Skubach, Senior Sales Engineer, InterSystems
🗣 @Ariel Glikman, Sales Engineer, InterSystems

https://www.youtube.com/embed/MM7GS4z3W5Y
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Contestant

#InterSystems Demo Games entry


⏯️ AI Smart Data Fabric

Shows how IRIS for Health can supercharge AI development with a Smart Data Fabric to train and feed their AI Models.

Presenters:
🗣 @Kevin Kindschuh, Senior Sales Engineer, InterSystems
🗣 @Jeffrey Semmens, Sales Engineer, InterSystems

https://www.youtube.com/embed/NEobey9l488
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I had a need for a Filter, but did not want to recreate the wheel by creating another Data Lookup Table, so instead I created a Linked Table that points to a MS SQL Table outside of IRIS.

Once I had the Linked Table, I created a Class Method Function that would query the Linked Table and return a 1 if a result came back.

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