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#InterSystems IRIS

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InterSystems IRIS is a Complete Data Platform
InterSystems IRIS gives you everything you need to capture, share, understand, and act upon your organization’s most valuable asset – your data.
As a complete platform, InterSystems IRIS eliminates the need to integrate multiple development technologies. Applications require less code, fewer system resources, and less maintenance.

Hi community,

I need to write an SQL query to fetch a random record from a table, that table has millions of data.

In postgresql, for example, there is a RANDOM() function to do something like that:

SELECT column FROM table
ORDER BY RANDOM()
LIMIT 1

Is it possible to do something like that in Caché?

Thanks in advance

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I have a class:

Class test.Person Extends (%Persistent, %XML.Adaptor)
{
Property Name;
}

I want to serialize it into this XML:

<Person>
    <Id>1</Id>
    <Name>Ed</Name>
</Person>

Is it possible?

It's for the Visual Trace so I can't use %XML.Writer.

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Hi everyone,

I'm trying to build my project on a Linux machine using Docker.

In my development environment, I use Windows 10 Pro with Docker Desktop version 2.3.0.5. Everything works fine, and the docker-compose build runs flawlessly.

But, when I tried to run the same project in a Linux.
Ubuntu 18.04.5 LTS (GNU/Linux 5.4.0-1025-azure x86_64), docker --version
Docker version 19.03.6, build 369ce74a3c

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Question
· May 16, 2021
IRIS or Cache?

Hello all,

I am in a bit of a situation where I could get your help please.

I want to get certified with IRIS, but I also do see that there is an availability named Cache.

Are they both the same or different? if different please explain it to me as how?

Also what is the difference between IRIS, IRIS for Health, Deep Sea? Please explain to me.

Also what do you think I should get my self certified with?

Please leave your comments below.

Cheers.

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Hello,

I'm quite new at InterSystems. I have a business process that's pointing two different business operations, but one of them I don't want it to point to.

I went through the FileSystem settings, data transformations, classes, and code to see what it could be, but I don't see why its connecting to this second operation.

What other inner-system mechanics would I need to consider? What have might I have missed?

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Hi Community...I am trying figure this out any help appreciated. Thanks in advance

The service is a file passthrough that picks up a PDF and then uses the BPL code below to create the rest wrapper and sends the stream data. I am not grabbing the stream from the inbound correctly, "request.Stream" or "request.StreamFC" always produces the following error.

Here is what is sent and returned in the message..

request:

<Stream>

15@%Library.FileCharacterStream

</Stream>

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I'm close with this but I'm not sure how to grab JUST the GT1.3 data. I know I can do a substring but finding the 3rd | is a tad tricky. I've not been this deep in SQL for 15 years.

SELECT SUBSTRING(hm.RawContent, (CHARINDEX('GT1',hm.RawContent)), 50) as NameDesc
FROM Ens.MessageHeader as em, EnsLib_HL7.Message as hm
where em.Status = 'Suspended'
and em.MessageBodyId = hm.id

I expect it should flow like this...

SELECT UNIQUE SUBSTRING(RawContent, (FIND 3RD PIPE),(FIND 4TH PIPE) as NameDesc ....

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I have a BPL Business process which always processes messages - mainly it waits for responses since downstream systems are seriously async.

I need to update this process.

Wwould the existing instances of this Business Process complete correctly after the update?

My BPL changes would result in:

  1. New S method in the Thread class
  2. New OnResponse method in the context class

Both changes are in the middle of the process, so there are S/OnResponse methods before and after my change.

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Starting installation
Starting up InterSystems IRIS for loading...
../bin/irisinstall -s . -B -c c -C /usr/irissys/iris.cpf*IRIS -W 1 -g2
Starting Control Process
Unable to allocate 242 MB shared memory...
Unable to allocate 232 MB shared memory...
Configuring minimum system...
Unable to allocate 139 MB shared memory...
Unable to allocate shared memory minimum of 139MB (errno=22)
Startup aborted.
Startup error. See messages.log for more information.
Call InterSystems Technical Support if you need assistance.

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Question
· Nov 3, 2021
ISCLOG Error

I received an ISCLOG errors in my IRIS container, and the processing is very slow because of that. How to solve this problem?

[Utility.Event] ISCLOG: SuperServer Super Server job slave failure ns=%SYS rtn=%SYS.SERVER
[Utility.Event] SuperServer failed to start slave server

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Good day,

I'm trying to get IRIS to run on a new MacBook with a Apple M1 Pro chip. Local installs did not run, so I switched to docker containers. When I execute following command "docker run --detach --publish 52773:52773 --volume /Users/joost/Docker/iris/data/dur:/dur --env ISC_DATA_DIRECTORY=/dur/iconfig --name iris21 --init store/intersystems/iris-community:2021.1.0.215.0" an image is pulled and a container is created but the IRIS instance does not run. The log gives me the following output:

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Hi....
I am trying to execute legacy routines from Cache 2018, into new environment with Iris 2021. I use new JDBC driver to make this connection, and change my java code to execute this legacy routines. But I get this write error: <REMOTE EXECUTE INVALID WRITE>
I changed the mnemonic routine to populate object and return this object to java. And the java class convert this object to json.
This is my simple classes used for this process, just to exemplification:

Java Class

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Hey Developers,

See how you can get high-performance relational access using SQL to manage data within your InterSystems products:

⏯ Using SQL with InterSystems IRIS

https://www.youtube.com/embed/7l-YT5y-nJo
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Hey Developers,

New video is already on InterSystems Developers YouTube channel:

⏯ What is the InterSystems IRIS FHIR Server

https://www.youtube.com/embed/2FC_yIC9VCY
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Question
· Apr 2, 2022
Subscript with double quoted

Hi Team,

I would like to save the array subscript with in double quotes

eg sub1=111,sub2=444 (these values are dynamic)

set array(sub1,sub2)=""

It will be saved as array(111,444)=""

but I want to save it as array("111","444")=""

I am trying to save it from the class like """"_sub1_"""" but its not displaying as expected.

Kindly do the need full.

Thanks in Advance

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