Migrating from Oracle, MSSQL, or other purely relational database systems to a multimodel InterSystems IRIS is a strategic decision that requires careful planning and execution. While this transition offers significant benefits, including enhanced performance, scalability, and support for modern architectures, it also comes with challenges. In this article I will highlight some of the considerations connected to coding to ensure a successful migration. I will leave everything connected to an actual migration of structures and data outside the scope of this article.

First, when you're considering migrating to a different database system, you need to understand your business logic, whether it's on the side of the application (application server) or the database server. Basically, where do you have your SQL statements that you will need to potentially rewrite? 

I recently had to refresh my knowledge of the HealthShare EMPI module and since I've been tinkering with IRIS's vector storage and search functionalities for a while I just had to add 1 + 1.

For those of you who are not familiar with EMPI functionality here's a little introduction:

Enterprise Master Patient Index

In general, all EMPIs work in a very similar way, ingesting information, normalizing it and comparing it with the data already present in their system. Well, in the case of HealthShare's EMPI, this process is known as NICE:

• Normalization: all texts ingested from interoperability

Hi devs!

What is the best way to return JSON in IRIS for a GET request in a REST app?

This is how I do it now:

ClassMethod GetAllPersons() As%Stream.Object
{
    d ..%SetContentType("application/json")
    Set rset = ##class(dc.Sample.Person).ExtentFunc()

    set stream=##class(%Stream.TmpCharacter).%New()
    d stream.Write("[")
    if rset.%Next() {
        Set person = ##class(dc.Sample.Person).%OpenId(rset.ID)
        Do person.%JSONExportToStream(.stream)
    }
    While rset.%Next() {
        d stream.Write(",")
        Set person = ##class(dc.Sample.Person).%OpenId(rset.ID)

I have an IRIS persistent class with a %Stream property whose value is a JSON object. I'd like to use a SQL trigger to pull some value out of the JSON and persist it in another property, for easy querying and indexing. See below for a minimal example:

Class PAB.DebugStream Extends%Persistent
{

Property Contents As%Stream.GlobalCharacter;Property msg As%String;ClassMethod InsertRow()
{
    set stream = ##class(%Stream.GlobalCharacter).%New()
    $$$ThrowOnError(stream.Write({"msg":"hello world!"}))
    &sql(insertinto PAB.DebugStream (Contents) values (:stream))
    $$$ThrowSQLI

Hi Guys,

I'm getting the below error when trying to train my Model

This is the table I created my model from

Thanks

I am struggling with returning a SQL Query Result that may have multiple rows that can be searched.

set query = "SELECT Facility FROM FROM osuwmc_EnterpriseDirDB.RelationshipMedCtrID WHERE OSUmedcenterID = ?"SET rset = ##class(%SQL.Statement).%New()
 SET qStatus = rset.%Prepare(query)
 SET rset = rset.%Execute($Get(ID))
 do rset.%Display()

I need to take the values that are returned and say search them for a single value. How would I go about returning the EnsLib.SQL.Snapshot into a Array or List for it to be searchable.

Can this be done internally within the DTL, so I don't have to go

I have a general question about HealthShare Provider Directory using Code Tables on disk vs Cache SQL Tables. Why is Provider Directory not using the Cache SQL Tables within the IRIS platform?

Hey Developers,

Watch this video to learn about InterSystems IRIS's new ability to integrate seamlessly with industry-standard observability tools to gather and visualize your InterSystems IRIS metrics, logs, and traces.  

⏯ Modern Observability with InterSystems IRIS & Open Telemetry@ Global Summit 2024

Hi developers!

This will be a very short article as in April 2025 with Lovable and other Prompt-to-UI tools it becomes possible to build the frontend with prompting. Even to the folks like me who is not familiar with modern UI techics at all.

Well, I know at least the words javascript, typescript and ReactJS, so in this very short article we will be building the ReactJS UI to InterSystems FHIR server with Lovable.ai.

Let's go!

Hi developers!

While developing web apps the security practice I consider safe and convenient is to create a special Role (e.g. equal application name) which contains security resources which application will need (SQL tables, priviledges, database access, etc) and assign it to the Web Application.
So the user gets this role once it loggs in to the application (via password, no password or delegated).

Convenient, right?

So, the question is, when I deploy the app as an IPM module what should I put as a database access?

For example I develop the app in the USER namespace so I list the access to

Hey Developers,

Get an introduction to Apache Kafka, a popular event-streaming platform, and see a demonstration of the upcoming Kafka integration with InterSystems IRIS Interoperability:

⏯ Kafka! Integrating the World's Favorite Stream Processor with InterSystems IRIS

I combined @Rodolfo Pscheidt https://github.com/RodolfoPscheidtJr/ollama-ai-iris with some files from @Guillaume Rongier https://openexchange.intersystems.com/package/iris-rag-demo.

My own project is https://github.com/oliverwilms/ollama-ai-iris

I can run load_data.py and it connects to IRIS (same container).

When I try to run query_data.py https://github.com/oliverwilms/ollama-ai-iris/blob/main/query_data.py , it cannot connect to ollama:

ConnectionError: Failed to connect to Ollama. Please check that Ollama is downloaded, running and accessible.

I wonder if I need to add in query_data.py, how it

Hi,

I want to ensure that the parent ruleset has an EffectiveEndDateTime when I evaluate a rule's when condition() . How would I do that please ?

Thank you.

W

When working with InterSystems IRIS, database developers and architects often face a critical decision: whether to use Dynamic SQL or Embedded SQL for querying and updating data. Both methods have their unique strengths and use cases, but understanding their performance implications is essential to making the right choice. Response time, a key metric in evaluating application performance, can vary significantly depending on the SQL approach used. Dynamic SQL offers flexibility, as queries can be constructed and executed at runtime, making it ideal for scenarios with unpredictable or highly variable query needs. Conversely, Embedded SQL emphasizes stability and efficiency by integrating SQL code directly into application logic, offering optimized response times for predefined query patterns.

In this article, I will explore the response times when using these two types of SQL and how they depend on different class structures and usage of parameters. So to do this, I'm going to use the following classes from the diagram:

Hey, Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ A Whirlwind Tour of the Analytics Buffet @ Global Summit 2024

Hi,

We're having an issue with some messages being sent to a downstream system from Healthshare.  Part of the free text in the NTE segment is displaying with special characters on the system front-end but is not present in the HL7 message that we send to them.  We are guessing that this is a result of some of the text being copied and pasted from something like MS Word. The '?' on their system is just representing an invalid character. 

Is anyone aware of a way to prevent this occurring? We are sending the messages using the 'cp1252' encoding.

Sent from us to system

What displays on the system

Has anybody tried to extend the Menu on Management Portal? I like to add a new page or a dashboard that will be created soon to the Management Portal and allow others to use it also. I understand there are risks that I could lose things during an upgrade. I am okay with that. Does InterSystems support such an effort?

Hi Community!

Welcome to Issue #21 of the InterSystems Ideas newsletter! This edition highlights the latest news from the Ideas Portal, such as:

✓ General statistics
✓ Community Opportunity ideas

As we all know, InterSystems is a great company.

Their products can be just as useful as they are complex.

Yet, our pride sometimes prevents us from admitting that we might not understand some concepts or products that InterSystems offers for us.

Today we are beginning a series of articles explaining how some of the intricate InterSystems products work, obviously simply and clearly.

In this essay, I will clarify what Machine Learning is and how to take advantage of it.... because this time, you WILL KNOW for sure what I am talking about.

Hi,

What is the best way to develop Angular applications while working with CCR?

CCR peer reviewers require submitting Angular source files, so that a peer reviewer has something readable to review. However, CCR environments require that you deploy compiled Angular applications to them.

Hey Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ Using Power BI for health insights

I think I found my solution but I'm trying to understand better why it works. Forgive me as my descriptions here may be scattered but I'm trying to piece the puzzle together.

Scenario: I've found there are times when I make a request using a %Net.HttpRequest object and as I'm debugging and stepping through via the debugger in VSCode, if I try to access an object in the 'variables' menu, sometimes when I click that little expand button it will just spin and never load what's in the object to the viewer.

I recently helped a site investigate a problem that appeared after they upgraded their Windows instance of Caché from 2015.1 to 2017.1. A terminal session launched from the server's desktop cube was unable to run OS-level commands using the $ZF(-1) function. For instance, using the no-op command "REM" as follows:

write $zf(-1,"rem")

was returning -1, indicating that the Windows command could not be issued.

It turned out that their original 2015.1 Caché service was running under a specific Windows account (as opposed to LocalSystem), which is commonly done in order to allow background processes

Hi Guys,

I'm a newbie that doesn't know much about integratedML and looking for a first push into it, I've setup VSCode with my IRIS 2024.3 running in Linux and my understanding is that we can create models using SQL, so first, do I need to setup a specific environment where I can run my SQL commands to create & train Models or just using SMP, and do I need to install or enable Python ..etc things required to setup the environment?

Then if there are easy samples or training materials on how to create, train & deploy my model?  

Thanks

Hi Community,

How Can I do to return ID when I call %JSONExport()?

Prefer not to read? Check out the demo video I created:

I've conducted some tests using different InterSystems IRIS Community Edition container images, which I pulled from https://containers.intersystems.com.

During this process, I noticed some inconsistencies that I’d like to clarify:

• The tag latest-preview pulls: InterSystems IRIS Version 2025.1.0.204
• The tag latest-cd pulls: InterSystems IRIS Version 2024.3.0.217
• The tag 2025.1 pulls: InterSystems IRIS Version 2025.1.0.223

This behavior was a bit confusing to me, especially since latest-preview does not point to the most recent 2025.1 build.

Could someone please confirm if this is the

Hey Community,

Great news for all those of you who have missed the Super Early Bird discount for the InterSystems READY 2025! You still have a chance to get an Early bird discount up until 26th of May! So don't miss you chance to participate in the event of the year.

➡️ InterSystems Ready 2025

🗓 Dates: June 22-25, 2025

📍 Location: Signia Hilton Bonnet Creek, Orlando, FL, USA

The 2024.1.4 and 2023.1.6 maintenance releases of InterSystems IRIS^® data platform, InterSystems IRIS^® for Health^TM, and HealthShare^® Health Connect are now Generally Available (GA). These releases include the fixes for the following alert recently issued - Alert: SQL Queries Returning Wrong Results | InterSystems. Please share your feedback through the Developer Community so we can build a better product together.

Documentation

You can find the detailed change lists & upgrade checklists on these pages:

• InterSystems IRIS
• InterSystems IRIS for Health
• HealthShare Health Connect

Early Access

I need a DTL to handle this.

Any ideas appreciated.

For all Prosthetics orders:
when ORC-1(Order Control) is "NW" (New Order), need to update OBR-18(Placer Field 1) based on PV1-2 (Patient Class) value.
assumption is that the selection logic is that all prosthetics orders with OBR-18 field is always blank.
Description :
If PV1-2 is I, insert I in OBR-18
If PV1-2 is O, insert O in OBR-18
If PV1-2 is E, insert O in OBR-18
If PV1-2 is P, insert O in OBR-18
If PV1-2 is R, insert O in OBR-18
If PV1-2 is B, insert O in OBR-18