#InterSystems IRIS

Hi everyone

I hope this message finds you well. I am currently working with a database system that allows the configuration of certain options using the SET OPTION statement.

SET OPTION SUPPORT_DELIMITED_IDENTIFIERS = TRUE;

I understand that this setting takes effect at the system level, impacting all sessions and processes. However, I am looking for a way to enable support for delimited identifiers that only affects the current session, without altering the global configuration.

My question is:

I already mentioned in a Previous post I am trying to build a list from a repeatable field within a HL7 message. I figured out how to build the list by using a context list string variable within the Business Process (BPL) and doing a

For some build scripting with the InterSystems Package Manager, I'd like to first uninstall a package with `zpm "uninstall"` and then load it from disk using `zpm "load"`. That way anything that got deleted from the source will also be deleted from IRIS.

The problem is that `zpm "uninstall"` takes in a module name and I only have the directory path to the package source. Is there a way to get the module name for an installed IPM module given the source path? It's okay to assume that it has previously been installed from that same directory with `zpm "load"`.

Let's start with a simple motivating question: over the past 14 days, what are my most common errors in the Application Error Log?

Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ FHIR Performance Benchmarking @ Global Summit 2024

https://www.youtube.com/embed/SnWLY9KPgUU
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Hi Everyone!

The Certification Team of InterSystems Learning Services is currently developing an InterSystems ObjectScript Specialist certification exam. Earlier this month we reached out to our community for feedback that will help us evaluate and establish the contents of this exam. We are still currently accepting responses and would love to hear your feedback!

I have the need to query an external database and write the result set/snapshot to an internal %Persistent [ DdlAllowed ] table that I built. I have built inbound SQL Services before and write them externally to replace SSIS jobs, but how would querying a database via a Service and writing the data to an internal table work?

Can I just take the inbound query structure and write it to the class file of the internal table in a DTL? If so, what would be the Target? Or does this need to be done within a BPL as a Code block?

Hello, dear colleagues.

I need to connect to a remote JavaGateway from an Ensemble service.

I am trying to use the EnsLib.JavaGateway.Service with a remote host where the JVM is running.

I can successfully ping the remote Java Gateway from EnsLib.JavaGateway.Service, and Ensemble reports that the service status is OK.

There are no network issues, and all necessary ports are accessible.

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?

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: