I have created a New Database/Namespace within our TEST environment on both the Primary and Backup of the mirror. When I go to create the database/namespace on the DR node I am getting "Cannot open file '/ensemble/TEST/iris.cpf_...." while the cpf file that it references does not exist. Anyone have any clue to why this might be happening?

Hi,

     Can anyone please tell me how to append a string using a update query.

For eg :  "Hello" is the string . I need to append the string world and it needs to be "Hello world".

Thanks

Jude

Summary

Introduction

Hello! In this article, I will be discussing database degrade, a type of data integrity issue one can face when using IRIS. First, I will be going over a review of the structure of IRIS databases. I'll then discuss how database degrade can manifest and common causes of degrade issues. I'll then conclude with general tips we give our customers about how to prevent or prepare for database degrade issues.

IRIS Database Structure

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.

An experiment on how to use the LangChain framework, IRIS Vector Search, and LLMs to generate IRIS-compatible SQL from user prompts.

This article was based in this notebook. You can run it with a ready to use environment with this application in OpenExchange.

Setup

First, we need to install the necessary libraries:

!pip install --upgrade --quiet langchain langchain-openai langchain-iris pandas

Next, we import the required modules and set up the environment:

Hello,

Our software commonly returns a full result set to the client and we use the DataTables plugin to display table data.  This has worked well, but at datasets grow larger, we are trying to move some of these requests server-side so the server handles the bulk of the work rather than the client.  This has had me scratching my head in so many ways.  

I'm hoping I can get a mix of general best practice advice but also maybe some IRIS specific ideas.

Some background

Summary of Alerts

Detail of Alerts

DP-439207 - AIX JSON Unicode Parsing Issue

Hey Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ Quick wins with InterSystems IRIS Vector DB

Not sure there are many that connect to MS SQL to execute queries, stored procedures, etc, but our Healthsystem has many different MS SQL based databases we use within the Interoperability environment for various reasons.

With the push to moving from on-prem to the Cloud we ran into some difficulties with our SQL Gateway connections and knowing how to config them to use Microsoft Entra for Active Directory Authentication.

Hello everyone,

I’m facing issues with replicating data from my Caché 2016 database to a PostgreSQL database. I need to handle around 300 data updates per minute, and whenever certain tables are modified, those changes must be reflected in other databases.

So far, I’ve tried various approaches, including:

• Setting up an intermediary API,
• Using Azure Service Bus,
• Leveraging Caché Jobs,
• All of which rely on table triggers as the entry point.

Hello, community.

I have a problem with running a SQL query on a linked MySQL table.

The connection works fine, but the following query throws an error:

SELECT   TOP 10 * FROM   linkedinternal_test.persons

 [SQLCODE: <-400>:<Fatal error occurred>]

  [%msg: <Remote JDBC error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '10 T1.PersonID AS C1,T1.LastName AS C2,T1.FirstName AS C3,T1.Address AS C4,T1.Ci' at line 1. >]

Linked table class:

I need to see the full SMTP trace when a %Net.SMTP attempts to send an email to troubleshoot an issue. As far as I know, the only way to get that is to uncomment line 192 in the %Net.SMTP class.

//:#define SMTPTRACE

I've done this in the past by giving myself the %DB_IRISSYS role, so I tried that. That database is also not mounted as read-only.

Of course the bigger issue here is that I can't seem to get that trace without having to edit a system class or create my own, but to fix my more immediate issue, what else do I need to check that would be preventing me from editing that class?

Hi everyone,

I'm trying to connect my Laravel application with the InterSystems IRIS Data Platform using ODBC.I need help setting up the ODBC connection and querying the database properly. What is the proper way to configure Laravel to work with an ODBC connection to InterSystems IRIS?

Any help would be greatly appreciated!

Thanks in advance!

Hi!

Suppose I have full access to InterSystems IRIS database instance A and want to export a consistent part of the data and import it into another InterSystems IRIS instance B. Classes are equal.

What are the most general and convenient options for me?

TIA!

Every time I try to update an SQL table using odbc connection, I'm getting: ERROR <Ens>ErrException: <MAX $ZF STRING>zPrepareW+1^%Library.SQLGatewayConnection.1

Set sqlStatement = "UPDATE dbo.Table1 SET OriginalMessageText="_OriginalMessageText_"WHERE Id='"_Id_"'"
$$$TRACE("SQL Statement: "_sqlStatement)

I know that the problem is with the length of the ORU HL7 message  (that contains OBX base64 PDF file ) I'm trying to update in the table, but is there a way to fix this? other than truncating the message ?

I also tried this statement but it didn't work as well

I need to do an audit of Linked tables which are using a specific SQL Gateway connection, and there are many.

This is defined by the parameter CONNECTION contained within the table class which extends Extends %Library.Persistent

Is parameter exposed within a table somewhere?

Hello all,

We have our system with AutoParallel enabled:

USER>w ##class(%SYSTEM.SQL.Util).GetOption("AutoParallel")
1

But whenever I try to run any sql the autoparallel does not work. For example, this simple query:

When I force it with %PARALLEL we can see it will effectively run in parallel:

The total records is bigger than the threshold. So, what can go wrong? Anyone in the same situation?

Hi! I am trying to export Cache data to my SQL database and am trying to export the schema as well.

The Data Export wizard on the Management Portal only allows me to export the data but not the schema. Is there anyway to get the schema exported as well?

Hi all.

I hope you can help me.

I've renamed a namespace and its databases names.

• Old Namespace: LABORATORIO
• New namespace: SRV-LABORATORIO

The rename of all has worked fine. When I've tried to access to the portal, it is no available, displaying the message "Tha namespace SRV-LABORATORIO does not support productions"

So, I've run the following command in terminal

zn"SRV-LABORATORIO"do##class(%EnsembleMgr).EnableNamespace($namespace)

My IRIS has created the links to create the production.

Now, I've opened the portal but my code has disappear.

InterSystems FAQ rubric

The maximum number of namespaces that can be created in one instance is 2047. However, to use a large number of namespaces, you will need to configure memory accordingly.

The maximum number of databases (including remote databases) that can be created in one instance is 15998. Depending on the type of license, there may be restrictions on the number that can be created. For details, please refer to the following document.
Database Configuration [IRIS]
Database Configuration
 

I have an IRIS installation that is using 8-bit charset encoding (set to deu8 / Latin 1). I would like to convert everything (database and system)  to Unicode

Charset encoding is something asked during installation, is it possible to change this on the fly ? The installer clearly say that Unicode systems cannot be converted. What about 8 bit ? 

Same for database : is there possible conversion ?

My current plan is the following :

- export all globals from 8-bit instance
- install a new Unicode instance
- import all globals into Unicode instance

Is there a simpler approach ?

Hi Team, we are going to deliver a speech on a developer forum where most developers hv not used our tech before but using other database and integration technologies , Pls give us some key points on why they should adopt us and the benefits you can get, especially if you change your tech stack from others to IRIS. Thanks a lot!

Hi Community!

Suppose you have a working system on 8-bit Caché database and need to transfer the solution to Unicode database.

How do you manage that?

If several application servers are connected using ECP, and one of them create many locks, so many that lock table became full :

Should we expect only that application server to be impacted ? (usually, when lock table is full the system became instable). Or, are other application servers going to be impacted the same way ? (because that lock table is synchronized and maintained in sync across all servers)

In this article, we’ll dive into the inner workings of the database management tool, exploring the architecture and technologies that power it. Understanding how the application functions behind the scenes will give you insight into its design, how it manages databases, tables, and how the API interacts with data.

We will discuss the core technologies used, including InterSystems IRIS as the primary database and Redis for caching. Additionally, we’ll break down the structure of the tables used and explain how the system handles data creation, retrieval, and manipulation through the REST API.

Hi, Community!

Want to improve accuracy and data integrity in your relational databases? Learn a key strategy in this video:

Setting Up SQL Foreign Key Constraints

Problems with Strings

I am accessing IRIS databases with JDBC (or ODBC) using Python. I want to fetch the data into a pandas dataframe to manipulate the data and create charts from it. I ran into a problem with string handling while using JDBC. This post is to help if anyone else has the same issues. Or, if there is an easier way to solve this, let me know in the comments!

I am using OSX, so I am unsure how unique my problem is. I am using Jupyter Notebooks, although the code would generally be the same if you used any other Python program or framework.

The JDBC problem

Hello Community,

The Certification Team of InterSystems Learning Services is excited to announce the release of our new InterSystems IRIS SQL Specialist exam. It is now available for purchase and scheduling in InterSystems exam catalog. Potential candidates can review the exam topics and the practice questions to help orient them to exam question approaches and content. Candidates who successfully pass the exam will receive a digital certification badge that can be shared on social media accounts like LinkedIn.  

Currently we are exploring how we can allocate additional disk space to our current environment as we have seen a significant increase in growth of our Database files. Currently we have 3 namespaces, all with 1 IRIS.dat each that contains both the Global and Routines.

Since we have started down the route of everything within a single IRIS.dat file for each namespace, is it logical as we see growth to be able to split the current IRIS.dat for each namespace into a separate IRIS.dat for global and a IRIS.dat with for routines for each namespace in a Mirror environment?