InterSystems IRIS is built on an architecture that separates the logical organization of data (namespaces) from its physical storage location (databases). Understanding this separation and the distinction between Namespaces and Databases is crucial for effective data management, security, and especially, high-performance data sharing.

In this article, I will discuss these foundational components and provide a practical guide on leveraging global mappings to share native data structures (globals) across different logical environments.

Databases: Physical Reality

A database represents the physical reality of where the data is stored on the disk. First and foremost, it’s a file in a file system called IRIS.dat (e.g., <Install folder>\mgr\user\IRIS.DAT). The maximum size of this file is 32TB. It is the container for all the actual data and the code. Databases are managed by the IRIS kernel, which handles caching, journaling, and transaction logging at the physical file level.

When you install InterSystems IRIS DBMS, the following databases are installed automatically:

Need to capture filename during BPL process, then set it to MSH-6 in the HL7 message.

Please advice, if this can be done.

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What are the best practices for creating a multi-tenant app in IRIS? How can I isolate data per tenant using namespaces, control resource usage, and delegate access via roles securely?

Sometimes your client may request documentation of your BI or interoperability project in a formal document. In this case, MS Word is a good alternative, as it has an advanced editor that allows you to generate professional documentation. Now it's possible!
The iris4word app has this functionality!

is there a way to include a pdf in a zen report in a stream field?

something somewhat similar to what is done for images

Hi Guys,

I get the attached error when trying to populate JSON string into a textarea, I'm running IRIS 2024 in a container in Ubuntu, any clues what could be the problem?

Thanks

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...

What are the best practices for choosing a shard key in InterSystems IRIS to ensure long-term scalability without needing major refactoring later?

Hi, Community!

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Hello, This probably easy but I can't seem to figure it out. I need to send the first and last name of nurses to one segment target. How do I do this?

EVN 5.2 and EVN 5.3 needs to = One target segment

There's a pattern I've encountered several times where I need to use a temp file/folder and have it cleaned up at some point later.

The natural thing to do here is to follow the patterns from "Robust Error Handling and Cleanup in ObjectScript" with a try/catch/pseudo-finally or a registered object to manage cleanup in the destructor. %Stream.File* also has a "RemoveOnClose" property that you can set - but use with care, as you could accidentally remove an important file, and this flag gets reset by calls to %Save() so you'll need to set it back to 1 after doing that.

There's one tricky case, though - suppose you need the temp file to survive in an enclosing stack level. e.g.:

I was facing the same issue as Jerry faced when connecting IRIS to SQL server. My ODBC connection is configured to authenticate via windows authentication.

Configure IRIS ODBC connection with Windows authentication using a

How I fixed it for myself?

IRIS Audio Query is a full-stack application that transforms audio into a searchable knowledge base.