I have table

CREATE TABLE nodes (
        name VARCHAR(50) NOT NULL, 
        parent VARCHAR(50), 
        PRIMARY KEY (name), 
        FOREIGN KEY(parent) REFERENCES nodes (name) ON UPDATE cascade
);

I put some data

INSERT INTO nodes (name, parent) VALUES ('n1', NULL);
INSERT INTO nodes (name, parent) VALUES ('n11', 'n1');
INSERT INTO nodes (name, parent) VALUES ('n12', 'n1');
INSERT INTO nodes (name, parent) VALUES ('n13', 'n1');

Let's delete all

DELETE FROM nodes;

Nope, no way.

SQL Error [124] [S1000]: [SQLCODE: <-124>:<FOREIGN KEY constraint failed referential check upon DELETE of row in referenced table>]
[Location: <ServerLoop>]
[%msg: <At least 1 Row exists in table 'SQLUser.nodes' which references key 'NODESPKey2' - Foreign Key Constraint 'NODESFKey3', Field(s) 'parent' failed on referential action of NO ACTION>]

Hi Community,

Let's meet virtually at our Third Community Roundtable! This will be a 60-min discussion on a given topic: Developing with Python.

Register through >> this Global Masters challenge <<

UPDATE: the roundtable recording is available here.

Some time ago GitHub, has announced the new feature, GitHub Codespaces. It gives an ability to run VSCode in the browser, with almost the same power as it would run locally on your machine, but also with a power of clouds, so, you are able to choose the machine type with up to 32 CPU cores and 64 GB of RAM.

Looks impressive, is not it? But how it could help us, to work with projects driven by InterSystems IRIS? Let's have a look, how to configure it for us.

Hi,

On adding two new custom settings to a process, i'm looking to improve the labelling on the component so that it includes spaces, i.e ("Archive Path" instead of "ArchivePath").

I've looked at the following article, specifically at the suggestion:

set ^CacheMsg("EnsColumns","en","ArchivePath")="Archive Path"

Overview

As previously announced at Global Summit 2022, InterSystems will discontinue shipping or installing an Apache-based web server (often referred to as the private web server or PWS); this change is currently planned for InterSystems IRIS 2023.2.

I am trying to figure out how to loop through the EnsLib.LDAP.Message.Results to get all the attributes. From router I am passing EnsLib.LDAP.Messge.Search as the request param. Response is EnsLib.LDAP.Message.Results. I am invoking the EnsLib.LDAP.Messge.Search BO.

At the BP level, trying to figure out how to extract all the attributes for a EnsLib.LDAP.Message.results

Hello community.

I have project on IRIS.

I am trying to make application deployable.

The Idea is to have 1 file that customer can download and run. For now I realize that whole intersysytems developer kit that includes Studio, terminal acts as runtime environment (Like Java has JDK).

Is it possible to wrap my project to 1 archive (Back to Java example .war or .jar) and run it on some application server (like Tomcat) without Studio etc..?

Thank you!

The following steps show you how to display a sample list of metrics available from the /api/monitor service.

In the last post, I gave an overview of the service that exposes IRIS metrics in Prometheus format. The post shows how to set up and run IRIS preview release 2019.4 in a container and then list the metrics.

This post assumes you have Docker installed. If not, go and do that now for your platform :)

Hi,

I tried to join my local DB table with link table. but I am getting below error.

5475 5475 reporterr2+40^%occRoutine Error #5475: Error compiling routine: %sqlcq.HSANALYTICS.cls483. Errors: %sqlcq.HSANALYTICS.cls483.cls(%OnNew+5) : SQLCODE=-161 : References to an SQL connection must constitute a whole subquery

I tried to execute below query in Managementportal

select dg.ID from HSAA.Diagnosis dg
left join LinkTableData.FacilityFullList la on dg.ID=la .ID

After seeing several article raving about how ground-breaking the recent release of ChatGPT is, I thought I would try asking it to help with a Caché newbie question: How do you find the version of InterSystems Caché?

To be honest, I was quite surprised at what the chat bot told me:

Hi guys!

My student asked my why his unit tests don't work as they should, and I just could answer him. Here is the simplified case.

There is a class with a required unique property Name:

Introduction

InterSystems IRIS 2020.1 includes PEX (Production EXtension Framework) to facilitate the development of IRIS Interoperability productions with components written in Java or .NET.

Thanks to PEX, an integration developer with knowledge of Java or .NET can benefit from the power, scalability, and robustness of the InterSystems IRIS Interoperability framework and be productive in no time.

When creating a PRA (Privileged Routine Application; which by the way is not relevant just for Routines but also for Classes/Methods), it is important to make sure you include a new $ROLES, before calling

is Intersystems studio available for Linux?