#Caché

When we need to integrate Caché/IRIS with other relational databases, one common question arises: “How do I set up the JDBC connection?”.
The official documentation doesn’t always provide a straightforward step-by-step guide, which can be frustrating, especially for beginners.

In this article, I’ll walk you through the entire process of configuring a JDBC connection with MySQL, from downloading the connector to linking tables in Caché/IRIS.

Note: JDBC connections in Caché/IRIS have some limitations, especially regarding caching and the use of ResultSet. In many cases, you may need to adapt qu

Hi Community,
I’m trying to execute a directory query in InterSystems IRIS using %SQL.Statement, but encountering an unexpected error.

Details:
The following command confirms that the directory exists:

Set dirPath="\\MYNETWORK_DRIVE\DFS-Shared_Product\GXM"
Write ##class(%File).DirectoryExists(dirPath)

It returns 1, meaning the path is valid and accessible.

However, when I try to execute this SQL query:

Set File=##Class(%SQL.Statement).%New()
Set Status=File.%PrepareClassQuery("%File","FileSet")
Set Result=File.%Execute(dirPath)
If Result.%SQLCODE {
    Write Result.%Message
}

I g

Hi,

Does calling the BIND method of %SYS.LDAP, with the username, domain and password of the user that  needs to be authenticated- the right way to authenticate him/her ?

Also - am I correct in assuming that something like this is independant to (and I don't  need to specify setting for),  System Security -> LDAP Options 

Thanks

Steve

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 co

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.

USER>kill^test
USER>for i=1:1:100 { forj=1:1:7 { set^test(i,j)="Test"_i } }
 
USER>zn"samples"// change namespace to SAMPLES
SAMPLES>kill^test
SAMPLES>for i=1:1:100 { forj=1:1:7 { set^test(i,j)="Test"_i } }
 
SAMPL

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

Class CIS.PATIENT.ReadPatientData Extends EnsLib.REST.Service
{
Parameter ADAPTER = "EnsLib.HTTP.InboundAdapter";
Parameter HandleCorsRequest = 1;

XData UrlMap [ XMLNamespace = "http://www.intersystems.com/urlmap" ]

I still remember the very first code I wrote in Object Script

Coming from Python, it felt so strange at first, but over time I started to see why the language was built the way it is.

If you’re just starting out, keep in mind that ObjectScript might feel a bit niche and mostly tied to IRIS products, but the way you work with it can really pay off - fast development, a powerful database, and a solid platform to learn on.

Sometimes it feels like you’ve stepped into a world that’s both familiar and different.

You’ll recognize bits of SQL, object-oriented concepts, but all mixed together in it

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=",";")
 

ClassMethod ExtractValues(text As %String, startStr As %String, endStr As %String) As %String
{    //Initialize Valriables
   Set values = ""
   Set start = 1
   
   While start '= 0 {
 Set start = $FIND(text, startStr, start)
 IF start = 0 { QUIT }
     Set end =

In Studio, is it possible to call a dialog with a single input text field inside a custom Studio.Extension.Base.CheckIn method?

Update: The AI Bot just answered, not sure why it was at loss before I posted.

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.

Note that the number of parallel processes cannot be specified, as it is automatically adjusted according to the number of CPUs. You can check the cu

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:

-> our LIS web-based application sets records into a queue for doing locks and unlocks (the LIS runs under one process - guessing its the CSP server processes that process the broweser-to-backend requests) NOTE:  Our LIS is a web application, so in order

Hi Team, Cahe system is not starting while starting one of our software application and getting an above error

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 diffe

InterSystems FAQ rubric

If you want to raise an arbitrary custom error in a TRY block, you can pass an exception with a throw as follows. In the following example, a custom error is raised if Stcount is less than 1.

Class User.Test
{

ClassMethod ExceptionTest()
 {
    try
    {
      // : some codesif (Stcount<1) {
          throw##class(%Exception.General).%New("User-defined error", "5001", "location", "Data at location error")
          // User-created errors are 5001 and above
      }
    }
    catch ex
    {
      write"Errors #", ex.Code, ": ", ex.Name, " : ", e

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.

Hello,

I am currently maintaining a legacy application that was developed in ObjectScript and accesses data by working directly with globals.
For a new program, however, I plan to access the same global data through SQL-mapped classes.

I have two questions regarding this approach:

1. If I define indexes in the SQL-mapped class, what potential impact (if any) could this have on the existing legacy application that directly accesses the globals?
2. I’ve read that when an index is defined in an SQL class, it will not be automatically updated if data is modified directly in the global (outside of

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.

SUB-AGENT auto stopping

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.

When I catch the full stack, it's erroring on the Work

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

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).
 

But strangely enough, it works (200):
https://mydomain.com/mobile/api/v4/news/test
The ClassMethid is OK:
ClassMethod NewsGetItem(version As %Integer, id As %Integer) As %Status
{
    w id
    Quit $$$OK
}

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.

In this article, I will present two ways to implement a robot with InterSystem

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.

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:

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

Migrating Studio connections was the most challenging part. Server connections are store

Someone, please point me to the location of the cache ODBC drivers, as I only found IRIS ODBC drivers.

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');
}

I hav

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?

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().

The problem is that the table does not update at all. Old rows remain, or sometimes nothing appears. I am strugglin

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.