#Caché

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

Documentation.

Question Cristiano Silva · Oct 1

Hi all,

I'm developing a Azure Pipeline to automate the deployment process in Caché.

I use selfhosted agent to execute code im my Caché Server.

My problem is that cession execution via cmd always terminate with exit code 1 and the pipeline finishes with error, but the execution in Caché is fine, the method executed returns $$$OK
I use the following line to execute a class in Caché.
C:\InterSystems\Cache\bin\csession.exe CACHE -U  %RELEASE_TRIGGERINGARTIFACT_ALIAS% "##Class(sgf.pipeline.DeploymentManager).ProcessDeployment()"
Bellow printscreen of execution in Azure:

The problem is the exit code 1

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Article Megumi Kakechi · Oct 2 2m read

InterSystems FAQ rubric

The ^%GCMP utility can be used to compare the contents of two globals.

For example, to compare ^test and ^test in the USER and SAMPLES namespaces, it would look like this:
*In the example below, 700 identical globals are created in the two namespaces, and the contents of one of them is changed to make it the detection target.

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Question Abdul Majeed · Oct 1

I'm trying to access the Bearer token from the Authorization header in my REST service class, but I'm getting a 500 Internal Server Error when I try to use %request.GetCgiEnv("HTTP_AUTHORIZATION").

My Environment:

  • InterSystems ensemble 2018
  • Using EnsLib.REST.Service with HTTP Inbound Adapter
  • REST API URL: http://ip:port/api-kiosk/patientData

My Code:

objectscript

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Article Padmaja Konduru · Jan 14 2m read

The utility returns the desired values from the text and display the multiple values if exists based on starting and ending string.

Class Test.Utility.FunctionSet Extends %RegisteredObject
{

/// W !,##class(Test.Utility.FunctionSet).ExtractValues("Some random text VALUE=12345; some other VALUE=2345; more text VALUE=345678;","VALUE=",";")
 

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Article Megumi Kakechi · Sep 25 2m read

InterSystems FAQ rubric

One way to optimize query performance is to use query parallelism on a per-query or system-wide basis (a standard feature).

This is a technique for dividing the execution of a particular query among processors on a multi-processor system. The query optimizer will execute parallel processing only if there is a possibility of benefiting from parallel processing. Parallel processing is only applicable to SELECT statements.

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Question John Hotalen · Sep 22

Hello to all my fellow Cache Developers/Experts out there :)

The purpose of this post is to get input/feedback regarding an issue we are having with our Cache LIS web-based application not being able to remove locks that were taken under a separate process.

Here is the background of how the LIS does the locking and details about the issue:

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Question David Saunders · Sep 4

Given the code below, I need help with getting the collected column widths from the Demo.Configuration table and stored in the columnWidths zne page property. As I understand it, I should be able to retrieve it using zenPage.columnWidths in the setColumnWidths or dgRender clientMethods but the alert is showing that it cannot be retrieved as it shows a value of Null. Once I can retrieve those values, then I want to set the widths of the colmns of the dynaGrid according to the values in the ^Demo.Configuration table. The data pulled in from the CSV file that creates ^Demo.Import can have a

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Article Hiroshi Sato · Nov 21, 2024 1m read

InterSystems FAQ rubric

Mirroring only synchronizes database files.

To synchronize other files required for your application (CSP files, images, documents, etc.) between the two servers that make up the mirror set follow one of the approaches:

  1. Place those files on a shared disk by introducing a NAS or similar device
  2. Or use file sync software to synchronize files between two servers.
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Question Matheus Augusto · Sep 4

Dear, Community!

I have a concern about using %Stream.TmpCharacter for storage purposes. Reading the class's source code, I can understand a bit about how it works. But I'd like to know from the community how it actually works. Is it necessary to use the .Clear() method to clear this buffer, or is it done automatically upon disposal?

Note: Please forgive my poor English.

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Question Rebecca Johnson · Aug 25

I'm trying to catch some WorkQueue errors that are happening on 2019 but not on more recent versions.

I'm getting an error when trying to call a class method via a workQueue. It functions properly in 2024.1. When calling the method, it immediately errors. I have logging at the top of the method that never gets set. 

The error being returned by Iris is simply an "ERROR #5039: An error occurred while calling function  s %sc=##class(|"NS"|Path.To.Class).ClassMethod(.%p1,.%p2)"

The parameter counts match and are appropriate for the method.

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Question Chris Lambert · Aug 21

Hello,

I'm trying to get the Reply Action Code to work with the error message text.

I have this ACK:

MSH|^~\&|APP|FACIL|||20250821143621||ACK|CUEACK_20250821143621|P|2.4
MSA|AE||Failed to queue message

This is some of the Action Codes I've tried:

  • E*Failed to queue message=S
  • E*Failed=S
  • E*"Failed to queue message"=S
  • :E*Failed to queue message=S
  • :?E*Failed to queue message=S

It's not suspending the message however.

What am I doing wrong?

Thank you

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Question Sébastien Demoustiez · Aug 22

Hello,

I have a main dispatcher (that extends%CSP.REST) that contains:
<Routes>
   <Map Prefix="/v([0-9]{1,2})/news"    Forward="API.Dispatch.news"/>
</Routes>

And I have the sub-dispatcher that contains:
<Routes>
   <Route Url="/:id"                        Method="GET"  Call="NewsGetItem"/>
</Routes>
If I try to access this route:
https://mydomain.com/mobile/api/v4/news/123
It doesn't work (404).

 

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Article Stuart Salzer · Aug 22 26m read

In this case, a robot is nothing like Gort from the movie “The Day the Earth Stood Still” or any other humanoid robot from science fiction. Nor is this Robot the one-armed automated welder from a real-world automotive assembly line. This Robot is a program that controls another program. You might want this for automated testing or to capture application logic from an application for which you don’t have the source, and the application’s author lacked the kindness or foresight to provide an API for its capabilities.

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Article Vachan C Rannore · Aug 18 3m read

While starting with Intersystems IRIS or Cache, developers often encounter three core concepts: Dynamic Objects, Globals & Relational Table. Each has its role in building scalable and maintainable solutions. In this article, we'll walk through practical code examples, highlight best practices, and show how these concepts tie together. 

1. Working with Dynamic Objects:

Dynamic objects (%DynamicObject and %DynamicArray) allow developers to manipulate JSON-like structures directly in Objectscript. They are especially useful for modern applications that need to parse, transform or generate JSON.

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Question MARK PONGONIS · Aug 18

Trying to create a new SQL Storage map on existing cache Global in the following format - ^MYGLO("R",rec)=data where the 'data' is built using $zel. e.g. $zel(data,1)="p1", $zel(data,2)="p2" etc... and the ^MYGLO("R",123)=data.

I'm having 2 issues. First, using the SQL Storage map wizard, I cannot figure out how to convey data in $zel format in the "Delimiter" field. 

Second, since I couldn't figure that out,  I tried to use the "Use Retrieval Code" option and entered the following line for the P1 property:

but get an error when compiling saying I cannot reference another field:

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Article Pietro Di Leo · Aug 21 3m read

Recently, I replaced my old laptop with a new one and had to migrate all my data. I was looking for a guide but couldn’t find anything that explained in detail how to migrate server connections from InterSystems Studio and Visual Studio Code from one PC to another. Simply reinstalling the tools is not enough, and migrating all the connections manually seemed like a waste of time. In the end, I managed to solve the problem, and this article explains how.

InterSystems Studio

Exporting Server Connections

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Question David Saunders · Aug 12

I am trying to use upload.csp as a template for choosing a CDV file to process. I am calling it from a zen page using this:
<button caption="Import Client Consultation Extract" 
       controlStyle="width:500px; height:100px; font-size:1.5em;"
         onclick="zenPage.importExtract();"/>

ClientMethod importExtract() [ Language = javascript ]
{
    // Open CSP popup to upload the CSV
    //alert('importExtract called.');
    zenPage.launchPopupWindow(zenLink('Upload.CSP'),'Upload Client Consultation extract',
                              'status,scrollbars,resizable,width=750,height=250');
}

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Question ha haha · Aug 13

In the Caché database, when calculating the total count based on the unique identifier of a record, the quantity is over 1.2 million. After removing duplicates based on the unique identifier and then calculating the total count, the quantity is over 400,000. When grouping by the unique identifier, it can be observed that the count for this identifier is not one. However, when performing a conditional query based on the identifier, only one record can be retrieved. Why is this the case?

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Question Aaron Laferty · Aug 14

Hi all,

I’m running into an issue with a %ZEN.Component.tablePane in a Zen page.

We have:

  • A fully styled table with all columns defined
  • A backend query (SearchMessages) that accepts multiple filter parameters
  • A set of input fields at the top of the page for filtering (text, date, and checkboxes)

We’re trying to run the query from a button click using a client-side method (runSearch()) that collects the filter values, sets them as parameters, and calls executeQuery().

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Question Anna Golitsyna · Aug 7

For example, you start debugging the AAA function, which calls the BBB function, then goes to the CCC^ABC function in a different routine and ends up while executing XXX^XYZ. No other routines or functions are visited in this example. What I would like is to get the record of AAA -> BBB -> CCC^ABC -> XXX^XYZ. No marking each function with recording code should be involved: too time consuming, too many functions in real code.

UPD: Iris has built in %SYS.Trace for this purpose but this class is apparently absent in Cache 2017. Did not find any substitutes yet.

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Question David Saunders · Aug 8

I have a personal copy of Cache which I use to help me with certain things. The instance resides on my Windows desktop. The apps I use a web enabled. It would be great if I could access my apps via web browser from my laptop without having to keep a copy of Cache on my laptop. It would make it difficult to keep the databases synced. So, if I restart my Cache instance, then I can use get to my apps by entering the url: http://ipadd:57772/csp/user/myapp.cls. but later, after having closed the browser on my laptop, if I try to open a browser session on my desktop I get license limit exceeded. So

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Discussion Infant Livingston · Jul 10

Hello Community,

I'm currently planning a system upgrade from Caché (2018.1.8.766) to InterSystems IRIS (2024.1). The environment consists of one database server and three application servers connected via ECP.

I’m considering two possible upgrade approaches:

  1. Upgrade the application servers to IRIS first.
    Since IRIS is expected to be backward-compatible with Caché over ECP, the database server would remain on Caché temporarily.
  2. Upgrade the database server first,
    followed by upgrading the application servers, as they don’t store data.
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Question David Saunders · Aug 8

I am writing a little app where I press a button on a Zen form. It calls a ZenMethod that uses zenPage.launchPopupWindow() to provide me a way to choose a file. I then click on an upload button that calls a csp cache language script file that runs on the server, that grabs the contents of the file and stuffs it into a global. I want it then close and return to the parent window to continue processing the contents of the file. I have tried placing the javascript code that closes the window and calls a function in the parent window in different places, but it is not closing the window or calling

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Article Harshitha · Aug 3 2m read

Working in healthcare IT as a young developer, especially on InterSystems TrakCare, you quickly realize one thing: it’s not just about HL7 messages or backend integrations. A hugepart of making TrakCare work smoothly for hospitals comes down to how it’s configured, customized, and supported on the application side.

That’s where people like me come in—techno-functional developers who understand both the tech and how it impacts actual hospital workflows.

We’re Not Just Techies (or Functional Consultants)

Our role sits right in the middle. We're the ones:

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