In the previous article, we talked about ODBC and connecting from C#. And now, let's look at JDBC and Java. The InterSystems JDBC driver is the recommended, high-performance way to integrate your Java applications.

Here is a step-by-step guide to getting your Java application connected to an IRIS instance using the JDBC driver.

Step 1: Obtain and Include the InterSystems IRIS JDBC Driver

Unlike ODBC drivers, which are often installed system-wide, JDBC drivers are typically distributed as JAR files that must be included in your Java project's classpath.

If InterSystems IRIS is installed on your local machine or another you have access to, you can find the file in install-dir/dev/java/lib/ or similar, where install-dir is the installation directory for the instance. Conversely, you can download the jar file from Driver packages page.

Or as suggested by @Dmitry Maslennikov in the comments, use the maven central repository for Maven:

<dependency>
    <groupId>com.intersystems</groupId>
    <artifactId>intersystems-jdbc</artifactId>
    <version>3.10.5</version>
</dependency>

or for Gradle:

implementation("com.intersystems:intersystems-jdbc:3.10.5")

Include the jar file in Project:

• Maven/Gradle: If you use a build tool, the simplest method is to add the InterSystems JDBC driver as a dependency in your pom.xml or build.gradle file. This automatically downloads and manages the JAR.
• Manual: For simple projects, you must place the JAR file in a project directory (e.g., /lib) and explicitly add it to your classpath when compiling and running.

I am working on building out a Workflow task that captures errors in mapping to specific tables. Within the Workflow task, I would like to give the owner of the task the ability to resubmit message once the mapping has been corrected. Is there a way to do it in a similar fashion to pulling up the Trace ie...

EnsPortal.VisualTrace.zen?SESSIONID=#(%task.%FormValues.GetAt("MsgHdrID"))#" target="_blank">View Message Trace

Is there a one liner that could be called to resubmit the MsgHdrID (Session ID) from its source to post it again?

Introduction and Motivation

A unit of ObjectScript code (a ClassMethod, say) may produce a variety of unexpected side effects by interacting with parts of the system outside of its own scope and not properly cleaning up. As a non-exhaustive list, these include:

• Transactions
• Locks
• I/O devices
• SQL cursors
• System flags and settings
• $Namespace
• Temporary files

Use of these important language features without proper cleanup and defensive coding can lead to an application that normally works correctly, but that may fail in unexpected and difficult-to-debug ways.

Hi Community!

Black Friday is here and this year, it’s all about discovering the best deals on Global Masters! Complete a short set of fun challenges, learn a few new things and collect extra points along the way.

From November 20 to November 30, join our Black Friday adventure: Find your deal on Global Masters.

🎯 During this period only:

• All asks which have a black cover will award double points during this period
• Inviting new Developer Community members through the Referral Program will also give 2× points when the invitee registers on DC.
• Everyone who completes the Black Friday journey will enter the raffle for a special prize - Prixton 1080P Matisse Mini Projector! 🎁

Don’t miss your chance! The Black Friday hunt ends November 30.

Hi Community!

We’re excited to announce a brand-new sweepstakes. This time, the theme is: 

💡 Initial Developer Experience 💡

We want to hear your thoughts on how we can make the very first steps with InterSystems technologies smoother, clearer, and more inspiring. Whether it’s documentation, onboarding, setup, or tutorials, your ideas can make a real difference!

Hey Community!

We're happy to share a new video from our InterSystems Developers YouTube:

⏯  Query Optimization in Hybrid Databases @ Ready 2025

When using standard SQL or the object layer in InterSystems IRIS, metadata consistency is usually maintained through built-in validation and type enforcement. However, legacy systems that bypass these layers—directly accessing globals—can introduce subtle and serious inconsistencies.

Understanding how drivers behave in these edge cases is crucial for diagnosing legacy data issues and ensuring application reliability.
The DATATYPE_SAMPLE database is designed to help analyze error scenarios where column values do not conform to the data types or constraints defined in the metadata.

Hello, Community:

📆 On February 19 you have a very special event at Espacio Covarrubias The One, in Madrid.

Iberia InterSystems READY 2026 is coming. An opportunity to share knowledge about generative AI, real-time analytics, and meet powerful partners in the sector. We will have very special guests, lots of surprises, and details we will be revealing.

Want to know more? Reserve your spot here and save the date in your calendar.

Stay tuned...

Has anyone been able to successfully implement a business service to pull files from Azure Blob storage?

In Part 1, we explored how window functions operate. We learned the logic behind PARTITION BY, ORDER BY, and such functions as ROW_NUMBER() and RANK(). Now, in Part 2, let's delve into more window functions with practical examples.

1. Aggregate-over-Window Functions

Overview

These functions compute an aggregate (e.g., sum, average, min, max, count, etc.) over the defined window frame but don’t collapse rows.
Each row remains visible, augmented with aggregated values for its partition.

Supported functions include the following:

• AVG() — average of values in the window frame.

Hey Developers,

Enjoy the new video on InterSystems Developers YouTube

⏯ Integrating AI Agents into InterSystems IRIS - Patterns and Techniques @ READY 2025

Parallel query hinting boosts certain query performances on multi-processor systems via parallel processing. The SQL optimizer determines when this is beneficial. On single-processor systems, this hint has no effect.

Parallel processing can be managed by:

1.  Setting the auto parallel option system-wide.
   

2. Using the %PARALLEL keyword in the FROM clause of specific queries.

Since the introduction of Embedded Python there has always been doubt about its performance compared to ObjectScript and on more than one occasion I have discussed this with @Guillaume Rongier , well, taking advantage of the fact that I was making a small application to capture data from public competitions in Spain and to be able to perform searches using the capabilities of VectorSearch I saw the opportunity to carry out a small test.

Using %get() function, getting error <INVALID OREF>

set iter = identifiers.%GetIterator()
     while iter.%GetNext(.key, .value, .type ) {
        set type = value.%Get("type")
        set text = type.%Get("text")
 

getting <INVALID OREF> at line   set text = type.%Get("text")

How  

The Interoperability user interface project has continued from 2025.1 and has incorporated many of the items that you – our customers and partners – have suggested and observed.  We are continuing to invest in feedback and updating this important user experience.   In the latest release, 2025.3 for IRIS, IRIS for Health, Health Connect and Health Connect Cloud, the DTL Editor and Production Configuration applications that are available for opt-in. 
NOTE:

• You can switch between the modernized and standard experiences. 
• All other Interoperability screens remain in the Standard user interface.

Hello Community,

Great news for developers who have just started working with InterSystems IRIS! We have hands‑on interactive tutorials available via the Instruqt platform! These are perfect for getting up to speed quickly, playing in real environments, and building confidence with IRIS‑based development.

Here is the list of available tutorials:

• Full Stack Tutorial - Experience how IRIS supports full-stack system architecture. 
• InterSystems Interoperability - Explore IRIS interoperability tools for connecting and integrating systems. 
• IRIS for Health Interoperability - Learn to use IRIS for Health features in application integration with data from an EHR (Electronic Health Record). 
• REST + Angular Application - Practice building applications with IRIS REST services. 
• RAG using IRIS Vector Search - Discover IRIS Vector Search capabilities for AI-powered applications. 

I am trying to add validation to a RecordMap, because the source of the data sent file sent us bad data within the file. So, I am using PATTERN to verify certain fields start with Numeric, and Alpha where applicable. When the EnsLib.RecordMap.Service.FTPService runs into an issue it doesn't seem like it continues onto the next record if the record does not meet the validation requirements. 

How can I tell EnsLib.RecordMap.Service.FTPService to log the error and continue onto the next record, so those records that fail are not processed?

Embedded SQL is a tool that allows us to execute SQL statements in Caché Object Script. For example, to select the name of a person with a particular SSN from the Sample.Person class we can do the following:

&SQL(
SELECT Name into :tName
From Sample.Person
Where SSN = :tSSN
)

The colon syntax is used to identify local variables, in this case tName and tSSN. Here, tSSN will be defined prior to execution and  tName  will be set during execution of the statement. &SQL indicates to our compiler that this is SQL syntax.

Hey Developers,

Enjoy the new video on InterSystems Developers YouTube

⏯ Generative AI in InterSystems Data Studio @ READY 2025

How do I take SVG data to be an image in Logi Reports? Now I can take JPG data and render it in Logi Reports. And I can take the SVG data in ObjectScript, but when I view it in Logi Reports, it won't appear. How do I get the code in ObjectScript to appear and be read in Logi Reports?

Inevitably, you will eventually need to move your code up from one version of IRIS or Cache to a more recent version of IRIS. There are a few good steps you can take to set yourself up for success in that process.

Read Documentation Carefully

Before you move anything you should check out the IRIS documentation page for many useful resources on changes made to various versions of IRIS. If you are upgrading through multiple versions, you will want to check on the documentation for all of them, not just the version to which you will upgrade.

InterSystems Cloud JDBC SQL Shell

A simple way to connect, explore, and debug InterSytems Cloud Services over JDBC with sqlline.

I am trying to add some validation to an existing Record Map, because recently we had some wrong data get consumed into the System and is causing all kinds of havoc.

Using the AI on the Developer community it suggested that I use PATTERN within the Datatype Parameters to force some validation on some fields. I have never used PATTERN before...

When I go to generate the updated Record Map, I am getting the following...

By the screenshots is my logic not correct?

I copied a Business Process router and did a Save As on its routing rule. I added the new routing rule to my new Business Process router.  However, when I click the green circle next to my new Business Process router it shows the old Business Process router connection.  Anyone know the cause and fix for this?  I found a old post that said to add a Route Alias. But that did not work. 

The 2025.3 release of InterSystems IRIS® data platform, InterSystems IRIS^® for Health, and HealthShare^® Health Connect is now Generally Available (GA). This is a Continuous Delivery (CD) release.

Release Highlights:

• Secure Wallet: A new encrypted framework for managing sensitive data, built on the IRISSECURITY database, improving system security and access control.
• Expanded Observability & Cloud Integrations: Enhanced OpenTelemetry metrics, including new process and ECP metrics, plus journal archiving now supports Azure Blob Storage for cost-efficient retention.

Hi community!

I am excited to say that since the beginning of this year we have published many of the client SDKs for InterSystems IRIS, InterSystems IRIS for Health and Health Connect to the corresponding external repositories (Maven, NuGet, npm and PyPI).

Overview

Fast Healthcare Interoperability Resources (FHIR) is a standardized framework developed by HL7 International to facilitate the exchange of healthcare data in a flexible, developer-friendly, and modern way. It leverages contemporary web technologies to ensure seamless integration and communication across healthcare systems.

Key FHIR Technologies

• RESTful APIs for resource interaction
• JSON and XML for data representation
• OAuth2 for secure authorization and authentication

gj :: configExplorer is a new VS Code extension integrating with Server Manager and leveraging Structurizr to produce configuration diagrams of your servers.

Here's a short introductory video.

By using the InterSystems IRIS Native API for Node.js it avoids the need for any support code to be installed on the servers. This technology choice also qualifies it for entry into the current Developer Community contest.

The initial release focuses on two aspects of server configuration:

• Namespaces and databases
• ECP connectivity

Suggestions for what to add next are welcome, as is general feedback.

Studio's Output window is interactive, and code can ask questions there if it is a Studio environment. How do I check for that?