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Article
· Mar 2, 2023 5m read
Tutorial - Working with %Query #1

The title of the contest subject is not quite precise but addresses the %Library.classes involved.
What is meant is officially named Class Query and is dating back to the early days of Caché.
CLASS is used because it is embedded in a COS class.
Though there is a precise description in the official documentation it remains rather abstract.
My tutorial should guide you step-by-step through a simple example in COS to make it tangible to you

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Hey all,

I'm trying to enable an existing namespace to be Ensemble enabled by doing the command do ##class(%EnsembleMgr).EnableNamespac($namespace,1), but I'm still getting the error message. Is there something that I'm missing?

I've attempted to reboot the server and even went incognito to see if it was a caching issue, but I'm still not able to create an Ensemble production in that namespace.

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Hi Community,

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ Querying 6 Terabytes of Protected Health Information at Northwell @ Global Summit 2022

https://www.youtube.com/embed/66rZCdX7m8U
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InterSystems announces its fourth developer preview, as part of the developer preview program for the 2023.1 release. Many updates and enhancements have been added in 2023.1 and there are also brand-new capabilities, such as production-ready support for Columnar Storage, ability to use Bulk FHIR, and support to MacOS 13 Ventura.

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Question
· Mar 21, 2023
Logging FTP Business Service

I am having an issue with a file not being deleted from the FTP server and returning an error to this effect. The file, however, was fully processed. This causes the file to process again.

My question is I seem to recall a flag that can be set to enable more detailed tracing to be done on the FTP service/adapter. However, I have not been able to locate this. Does anyone recall such a logging setting or was I just dreaming?

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Hi ,

I'm using standard business service not(Customized business service). I'm not able to process the Hl7 data file which contains CRLF characters.It shows warning "Discarding Received non HL7 data". Actually it discards some segment after CRLF character. Is there any settings to overcome this problem?

Also i tried UTF-8, Ascii,Unicode.. characterset . But it won't work. Please help me .

Urgent!!!

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As you know in Caché / IRIS you have the possibility to define a property as Multidimensional as documented here:
https://docs.intersystems.com/iris20201/csp/docbook/DocBook.UI.Page.cls?KEY=GOBJ_proplit#GOBJ_proplit_multidim
and the explanation of how to use it
https://docs.intersystems.com/iris20201/csp/docbook/Doc.View.cls?KEY=GOBJ_proplit#GOBJ_proplit_multidim_values

Though the access is quite comfortable (in traditional COS sense) there are 2 main restrictions that hurt:

#1) It is not saved to disk unless your application includes code to save it specifically.
#2) It cannot be stored in or exposed through SQL tables
there are some more
I'll show how to overcome these limits

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Question
· Mar 20, 2023
Reading through file fast

Hi Guys,

I've the below code that copies 15000 records into a global, problem is that taking around 11 secs to finish and I'm wondering if there is any faster way (eg. would copying the file into stream and look through the stream makes it faster!?) because I've hundreds of files I need to process every time.

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Hi Community:

As you may know, I am the person who does the program and scheduling for our Global Summit sessions, so I can give you a sneak peek at our agenda before it is published.

I'm happy to report that we will have two special, four-hour workshops on Sunday, June 4, which is the day you arrive to register in Hollywood, Florida.

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Question
· Mar 17, 2023
A confusing experience

During my last migration to IRIS I met this Compatibility parameter

  • NullSubscripts true
0 - Throw error when referencing a null subscript.
1 - Null subscript references do not throw an error.

The consequences are shocking. This was allowed:

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One of the reasons why I love Cache and Iris is that not only you can do anything you can imagine, also you can do it in a lot of different ways!!.

Imagine that you have an integration running with IRIS connected by ODBC you probably only run SQL queries but you can also create stored procedures and inside write the code to do everything you can imagine.

I'm going to give you some examples but the limit is your imagination!!

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Question
· Mar 17, 2023
JWTToObject

Goodday,

I would like to Validate token signature with public key i have in pem format, i am using below code but i get error message. Could you please tell me what i am doing not right? FOUT #5002: Caché fout : <DIRECTORY>zLinkToFile+2^%Stream.FileBinary.1 *-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMI ...

hier is my code

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Is there a command that will loop through the flat files of a given Linux/Unix folder? I can write the code to open and read each file. But the file names are unknown. I am looking for a way to access each file given a named Linux folder. The files have differing structures so a record map will not work.

Thank you for reading and thank you even more for answering!

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Hey Community,

Tired of entering login-password during the docker build with your InterSystems IRIS every time?

There is a handy way to turn it on and off – use the passwordless zpm module.

Watch this video to explore how to use the passwordless ipm module to turn on and off entering login-password during docker build with your InterSystems IRIS:

⏯️ Passwordless mode for development with InterSystems IRIS

https://www.youtube.com/embed/ygIJsTMO0Gw?controls=0
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I have experienced that my iris server is gone due to upgrading the docker version when I have built IRIS server on docker container.

Based on this experience, I'd like to show you how to make a backup for the IRIS server before upgrading platform or docker, and the procedure for rebuilding the IRIS in a new environment.

IRIS server backup procedure

When you have finished building for the IRIS server, you need to make a backup.

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Question
· Mar 13, 2023
IRIS Production - What it is?

Hi,

In some of the trakCare screens there is term "Production" shown [Interoperability->Production Configuration]
What is a production?

The production I'm looking at, is related to a Gateway.

What is a definition of a Gateway? How is this different to an Interface?

Under Gateway Production, there are "Services", "Processes", "Operations".

How are these defined to be?

I have 3 services, each with a green dot.

I have 3 processes , each with a green dot.

I have 5 operations, 4 of which has a green dot and one red dot.

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