#Caché

30 Followers · 4.6K Posts

  

InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

Question omer · Jan 13, 2025

Hello! 
So my question is quite simple, Do the different data models of Intersystems all support the ACID properties?
I assume that for the SQL data model implementation it does, But does it also work for global (i.e the hierarchical  data model)?
I searched the docs and the different articles, It seems for example that here its implied that the different data models of
Intersystems  DO indeed support the ACID properties and allow for safe insertion, deletion etc... in concurrent operations to the server that is.

Would love to get a clarification, Thx!

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Question Dan Murt · Feb 18, 2025

Hi Community, 

I have a problem I am hoping someone can help with - I have created a front-end with HTML/CSS/JS in a CSP page in Iris Studio. I am trying to use objectscript on the back end to connect to a SQL Server Database (with valid credentials), and execute a stored procedure.

I have a fileList variable that is a stored as a comma separated string through a user input textBoxContainer.

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Article Maria Gladkov · May 15, 2024 4m read

Hi all! Here I would like to share how we use vector search and GenAI with InterSystems technology. As an example, I'll describe BG-AppealAI project, which our company submitted to the InterSystems Vector Search, GenAI and ML Contest. BG-AppealAI application can write an appeal if you upload an insurance contract and the insurance company’s letter with a refusal to pay medical expenses. Of course, we are aware that at the moment AI has not reached such a level as to create ready-made legal documents.

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Article Murray Oldfield · Jan 12, 2017 19m read

Hi, this post was initially written for Caché. In June 2023, I finally updated it for IRIS. If you are revisiting the post since then, the only real change is substituting Caché for IRIS! I also updated the links for IRIS documentation and fixed a few typos and grammatical errors. Enjoy :)


In this post, I show strategies for backing up InterSystems IRIS using External Backup with examples of integrating with snapshot-based solutions. Most solutions I see today are deployed on Linux on VMware, so a lot of the post shows how solutions integrate VMware snapshot technology as examples.

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Job Toby Keod · Jun 18, 2024

We're looking for an experienced developer to join our team and help with the project on a part-time basis (20-30 hours a week). Required experience includes InterSystems Cache, PHP, and API. We're ready to start immediately if you're available. Fluency in English and the ability to work in the US time zone is preferred.

About Us:
Redline Coders, an IT consulting firm in California.

Position Details:
- Remote
- 20-30 hours a week
- Duration: 1-2 months

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Question Mike Yackanich · Jan 13, 2021

Hi all,

I have a passthru REST setup using EnsLib.HTTP.GenericService and EnsLib.HTTP.GenericOperation. Works well.

I am adding some logic to the Operation and for some scenarios I want to return an HTTP 40x response status code.

I create an httpResponse object within the Business Operation, but I can't figure out how to set the http response status code that is returned to my Posstman client that initiated the request. I set StatusCode=400, and StatusLine and ReasonPhrase properties - but when the ultimate requestor (Postman) receives the response back it is a 200 status code.

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Question omer · Feb 11, 2025

Hey everyone, 
Might be a stupid question, but i was trying to set the ContentLength of the %response object in my website.
In different places (like the onPreHttp / onPostHttp etc) but none seems to work.
The reason behind it is to send a more accurate representation of the actual data I send, instead of having the overhead of the broker that adds more characters , I want the exact length of the response accounting only for the data that I actually returned.

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Discussion Julian Matthews · Feb 3, 2025

Hey everyone.

As I have been working with IRIS (nee Caché) for some time now, I decided to take a look at how I manage things like functions and scripts that may not belong to a single namespace or environment, but should still have a home.

I have taken to creating a github repo where I can keep track of a single .cls of "general functions" that I can then drop into an environment when required.

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Question Ali Chaib · Feb 7, 2025

I have a scenario where I send a GET request to a broker and receive a FHIR response. When I attempted to use the built-in InterSystems functions to convert this FHIR response into SDA, the transformation failed—likely because it is not a standard FHIR request.

How should I handle this situation? Is there a recommended approach to processing FHIR responses in this context?

Additionally, if I manage to convert the FHIR response into a request format, I noticed that the broker sends a Task resource.

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Question Ali Chaib · Feb 7, 2025

I understand that InterSystems provides functions to facilitate transactions between FHIR and HL7 via the SDA segment. My question is:

  • Does this transformation only work when InterSystems receives FHIR requests and converts them into HL7, or does it also support responses?
  • Specifically, if our operation sends a GET request to a broker and receives a FHIR response, does InterSystems support transforming this response into an SDA segment automatically?
  • Or should we manually parse and modify the response to handle it according to our needs?

What would be the best approach in this scenario?

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Question Eduard Lebedyuk · May 18, 2016

In MySQL I have the following table:

CREATE TABLE `info` (
   `created` int(11)
);

And it is linked (via JDBC SQL Gateway) to Cache table mysql.info.  `created` field stores unix timestamp. So when I execute  this SQL in SMP:

SELECT created FROM mysql.info

I receive the following output (which is expected):

created
1435863691
1436300964

But I want to to display `created` field converted to ODBC timestamp format. To do that I call this SQL procedure

Class mysql.utils [ Abstract ]
{
/// Unix timestamp to ODBC
ClassMethod uto(unixstamp As %Integer) As %TimeStamp [ SqlName = uto, SqlProc ]
{
    set startday = $zdh("1970-01-01 00:00:00",3)
    set endday = (unixstamp \ (60 * 60 * 24))
    set endtime = (unixstamp # (60 * 60 * 24))
    set totalday = endday + startday
    quit $zdt(totalday _ "," _ endtime, 3)
}
}
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Question Thomas Haig · Feb 4, 2025

At the moment we're creating multiple BPLs are using a router (or another BPL) to direct to these based on a unique key modulo the amount of BPLs available, e.g. if we have 3 BPLs created.
Message key = 1 mod 3 + 1 -> BPL02
Message key = 2 mod 3 + 1 -> BPL03
Message key = 3 mod 3 + 1 -> BPL01
FIFO only matters in that each messages for each key is processed in order.
What we were considering doing is increasing the pool size to 3 and programmatically creating a BPL on each thread that processes messages that would be directed to it, rather than having to create multiple BPLs into the production.

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Question Deepa Shahi · Feb 3, 2025

On Encounter container we want  to map some data from Z segments is that possible?  Presently the mapping from HL7to SDA3 is taking place from HL7 defines segments . is there a way to push the data from Z segment.

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Article Robert Cemper · Feb 3, 2025 3m read

Host Variables are a rather common programming feature in many implementations of SQL. 
A recent question in DC made me aware that in IRIS, Caché, Ensemble, ... 
host variables just exist within embedded SQL

>  You can supply host variables for Embedded SQL queries only. <

Related examples are included in the available Documentation

This is a description  for a workaround if you don't / can't use embedded SQL.

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Question isayas mola · Jan 30, 2025

Hi everyone,
I am trying to create a listen server in Cache 2016 that can capture data from a specific port. Can someone guide me on how to set this up, including handling incoming connections and reading data from the port? Any advice or example code would be much appreciated!

Thanks in advance!

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Question André Suhnel · Jan 30, 2025

Hello,

I'm trying to add another segment to an HL7 MDM message. More specifically OBXgrp(1).OBX. The addition itself works,. When I look at the message in the trace, the segment with the content can be seen. However, it is not displayed as an OBX segment.

Build Map Status = 'ERROR <EnsEDI>ErrMapRequired: Missing required OBXgrp(1) element at segment 6'
'ERROR <EnsEDI>ErrMapSegUnrecog: Unrecognized Segment 6:'' found after segment 5 (TXA)'

// HL7-Nachricht klonenSet%ConstructClone

What do I need to change or adjust so that the segment appears correctly in the message?

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Question Frank Jackson · Jan 24, 2025

Hello,

Very much keen if we could gather the per namespace and business component utilization of InterSystems cache server.

For e. I have a PRD server where its CPU utilization is at max all the time and I want to know which namespace and its business process (service/Operation/Process) is utilizing what number of CPU and memory.

** I can get the CPU and Memory utilization per Cache.exe and PID, but not able to get the Namespace and ConfiguratioName to which that particular PID belongs.

Thank you,

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Question omer · Jan 15, 2025

Hey, So the title pretty much describes the question:
Where and How can i see the Stream that contains the response back to the client of a CSP application.
When the request is being processed and finished we return a response to the client - We do that by writing the data to a stream and that stream is sent back to the client.
I wanted to know how i can access the point right before that Data is actually written to the client back (meaning the place where the response is actually being send back, the last point of contact).

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Question Andre Ribera · Jan 21, 2025

I'm working on some code that would benefit from being able to see whether or not a project file has been saved in Studio.
I can see when I make changes, that the project name has an asterisk added to it:

In searching for it, however, I haven't been able to find any methods or calls to access the property/check that controls that asterisk.
My question is whether anyone out there knows if that is accessible and if so then how can it be accessed.
I'd like to add a check in my code that enforces that the project file must be saved prior to proceeding with the intended action.

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