Fabio Care · Nov 14
Image Download from URL


I'm currently struggeling with a HTTP request to a URL, which contains an jpeg image file.

Testing the request with a browser or Postman results in the image being shown normally.

Using a %Net.HttpRequest with different configurations has resulted in a corrupted file.

My code works for some URLs from other servers perfectly fine, but with some it produces corrupted file contents which do not represent a jpeg.

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The capacity of taking numerous records every second while also facilitating real-time queries simultaneously in real time is called Hybrid Transactional Analytical Processing (HTAP). It is also called Transactional analytics or Transanalytics or Translytics and is a very useful element in scenarios where there is constant flow of real time data coming from IIOT sensors or data on fluctuations in stock market, and supporting the need for querying these data sets in real-time or near real-time.

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In this GitHub we gather information from a csv, use a DataTransformation to make it into a FHIR object and then, save that information to a FHIR server all that using only Python.

The objective is to show how easy it is to manipulate data into the output we want, here a FHIR Bundle, in the IRIS full Python framework.

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Has anyone had any success reading barcodes from PDFs or images in a Cache/IRIS application? I've been looking at some possible solutions for this, including the open source ZXing libraries. I know we have the ability to create them in Zen and Intersystems Reports, but as far as I know, there's nothing built in to actually read data from a barcode. If anyone has suggestions on how to go about this, I'd love to hear them.

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Robert Cemper · Jan 2 3m read
DB Migration using SQLgateway

Thanks to @Yuri Marx we have seen a very nice example for DB migration from Postgres to IRIS.
My personal problem is the use of DBeaver as a migration tool.
Especially as one of the strengths of IRIS ( and also Caché) before is the availability of the
SQLgateways that allow access to any external Db as long as for them an access usinig
JDBC or ODBC is available. So I extended the package to demonstrate this.

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Hey there,

I'm writing an import Routine to read files into a global. The code is working fine except for the 'Delete' command. The files are being imported, copied but not deleted. Maybe someone has an Idea what ist happening.

I get the low level return value of -32 but i couldn't find anywhere to show me what that actually means. And my Caché version doesn't support the $ZU command.

Here's the Code

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Hi folks!

Sometimes we need to import data into InterSystems IRIS from CSV. It can be done e.g. via csvgen tool that generates a class and imports all the data into it.

But what if you already have your own class and want to import data from CSV into your existing table?

There are numerous ways to do that but you can use csvgen (or csvgen-ui) again! I prepared and and example and happy to share. Here we go!

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I am working on the new USCDI Requirement to store LOINC Codes/Descriptions for various types of Clinical Notes in the SDA.

According to all of the documentation I had been able to find, in order to store a coded value for Document Type, I have to use Custom Pairs:

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Our team is looking for a way to export all of our Cache SQL tables into Microsoft SQL Server. I have only found a method to export one table at a time into an ASCII file. We have over 170 tables so this would be very tedious and time consuming. Is there a way to directly export from Cache to SQL Server. Alternatively is it possible to export the entire database in a single shot or even multiple tables to text files?


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This is the fourth part of the series of articles on migrating from the main databases on the market to InterSystems IRIS. In this part, the procedures for migrating from Microsoft SQL Server will be detailed. As described in previous articles, there are currently a few options to do the migration, but the two most popular options include the use of DBeaver ( or SQLGateway.

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Hey community! How are you doing?

I hope to find everyone well, and a happy 2022 to all of you!

Over the years, I've been working on a lot of different projects, and I've been able to find a lot of interesting data.

But, most of the time, the dataset that I used to work with was the customer data. When I started to join the contest in the past couple of years, I began to look for specific web datasets.

I've curated a few data by myself, but I was thinking, "This dataset is enough to help others?"

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This is the third part of the series of articles on migrating from the main databases on the market to InterSystems IRIS. In this part, the procedures for migrating from DB2 will be detailed.As described in previous articles, there are currently a few options to do the migration. However, the two most popular options include the usage of DBeaver ( or SQLGateway.

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This article is a follow-up to the previous one on how to migrate from popular databases (like PostgreSQL and MySQL) to IRIS.
We will use the same procedures utilized to migrate from PostgreSQL. However, you will see that it is even easier since the data types in MySQL are very similar to IRIS. That is why we will not need to create transformation rules in the columns.

Get the sample data to the migration process

In GitHub it is possible to download a docker-compose project to build and run 2 databases:

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Hi Developers!

Here're the technology bonuses for the InterSystems IRIS Datasets Contest 2021 that will give you extra points in the voting:

  • Dataset Usage Demo Repository - 4
  • LOAD DATA Usage - 3
  • Questionnaire - 2
  • Unique Real Dataset - 4
  • Docker container usage - 2
  • ZPM Package deployment - 3
  • Online Demo - 2
  • Code Quality pass - 1
  • First Article on Developer Community - 2
  • Second Article On DC - 1
  • Video on YouTube - 3

See the details below.<--break->

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I have csv date file with date values like this "4/10/2021" for April 10, 2021. I defined a table with this property: Property TranDate As %Library.Date.

I capture error

[SQLCODE: <-104>:<Field validation failed in INSERT, or value failed to convert in DisplayToLogical or OdbcToLogical>] [Location: <ServerLoop>] [%msg: <Field 'dc_data_finance.transact.TranDate' (value '4/10/2021') failed validation Field ...

I do not really want to change TranDate to %String. How can I import "4/10/2021" into %Date property?

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We are migrating from AIX to Linux and part of our testing is trying to figure the best method to migrate the code. I am trying to export an entire Production, however I keep running into an error...

Error generating export list for production osuwmc.TestClin and all items may not be listed.
ERROR #5002: Cache error: <CLASS DOES NOT EXIST>zgetRecordandComplexMapClasses+34^Ens.Config.Production.1 *(No name)

I went through any Complex Record Maps, and recompiled them but I am still getting the same error

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