Syndicate content 0  
 
All time
Article
· Sep 10, 2020 3m read
How To Create "Write-Only" Code

One of the leading benefits of ObjectScript is the speed and efficiency it allows for an experienced developer. Let's look at an example of how you can benefit from ObjectScript today.

Suppose you have a class that stores the names of your users. We'll call the class Data.User, and give it a string property Name. Next, we will need a method to create a new user or update an existing one. A naive, simplistic approach might look like this example:

6 10
0 721

Hello!

I am taking the 'Creating an InterSystems Class Definition' course, and the Exercices asks to open a Terminal from the Management Portal to create and interact with a new object. I didn't found how to acces tot the Terminal from the Management Portal, and the documentation I have seen doesn't help me... sad

0 11
0 910

Hopefully a simple question.

Using the Rule Editor, I can open a routing rule and easily define an 'effectiveBegin' and 'effectiveEnd' date. I want to utilize this date feature for a "sub-rule" (i.e. rule #1) but not the entire routing rule therefore impacting all other rules. I also do not want to split and create a brand new routine rule just to send the message to the target business process. It would be ideal to keep it contained within this single routing class that was created.

0 1
0 920
Article
· Nov 26, 2019 3m read
Designing valid hierarchies in DeepSee

When designing a hierarchy in DeepSee, a child member must have only one parent member. In the case where a child corresponds to two parents, the results can become unreliable. In the case where two similar members exist, their keys must be changed so that they are unique. We will take a look at two examples to see when this happens and how to prevent it.

5 1
1 900
Question
· Mar 8, 2018
WIDE CHAR error

Hello,

I'm getting <WIDE CHAR> error in one of my routines, I was thinking a corrupted data or disk out of space or no mount database but all seems to be OK?

I'm running Cache 2014.1.2 and the same routines and data works in our client main server with not problems but having the same copy in their backup server is generating <WIDE CHAR> error, some other reports works but this specific doesn't?

Thanks

0 3
0 917

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

0 8
0 910

Hi,

Is there any way to set environment variables in Linux from Cache?

I see a way to get an environment variable with: $system.Util.GetEnviron()

Essentially I am converting from VMS (DCL) to Linux.

In VMS we used $ZF(-1,"SETSYM") in Cache to a value and then interpreted that value in a DCL procedure.

0 2
0 916

Our application has a SOAP service that is currently exposed via the built-in Apache server inside of Cache. I have configured the application to IIS instead so we can IP-Filter, however I no longer wish to have the management portal or other resources via the built-in Apache server. How can I disable the built-in Apache server so internal resources no longer reply on that server and are instead routed via the IIS site?

0 6
0 912

InterSystems SAM is a great tool to monitor your InterSystems IRIS and InterSystems IRIS For Health clusters on prem or in a cloud environment. This article describes how you can implement a customized alert handler. This is currently an undocumented and most likely an unknown feature of InterSystems SAM. With future releases it will be probably made easier to leverage this useful concept.

7 2
1 877

I'm working with VS Code on Centos 8. When I install the ObjectScript extension the installation succeeds, but the InterSystems icon never appears in the left-side panel. I can change settings for the extension - set the server info, etc. No errors show-up in the VS Code debug log.

UPDATE: the same thing happens on MacOS when using VS Code 1.46.1 and InterSystems ObjectScript extension 0.8.6

Can anyone suggest next steps for me to troubleshoot? Is there another log I should check?

1 3
0 914

Headache-free stored objects: a simple example of working with InterSystems Caché objects in ObjectScript and Python

Neuschwanstein Castle

Tabular data storages based on what is formally known as the relational data model will be celebrating their 50th anniversary in June 2020. Here is an official document – that very famous article. Many thanks for it to Doctor Edgar Frank Codd. By the way, the relational data model is on the list of the most important global innovations of the past 100 years published by Forbes.

On the other hand, oddly enough, Codd viewed relational databases and SQL as a distorted implementation of his theory. For general guidance, he created 12 rules that any relational database management system must comply with (there are actually 13 rules). Honestly speaking, there is zero DBMS's on the market that observes at least Rule 0. Therefore, no one can call their DBMS 100% relational :) If you know any exceptions, please let me know.

4 0
3 917
Question
· Mar 21, 2022
Available space in a DB

When we run data purges in a namespace, the size and space of the DB does not change. I assume like Oracle it leaves white space that is usable by cache, but is there a way to see how much of this space is available? Today I increased the size of the disk available to the system as we were reaching critical low disk space, however, with the purges, we should have several hundred GB of available space inside the database to use. And is it safe to allow the system to run out of available disk space, as long as there is enough free space in the DB for writing data?

0 6
0 910
Article
· Dec 19, 2021 5m read
IntegratedML walkthrough

The InterSystems IRIS IntegratedML feature is used to get predictions and probabilities using the AutoML technique. The AutoML is a Machine Learning technology used to select the better Machine Learning algorithm/model to predict status, numbers and general results based in the past data (data used to train the AutoML model). You don't need a Data Scientist, because the AutoML it will test the most common Machine Learning algorithms and select the better algorithm to you, based in the data features analysed. See more here, in this article.

Open Exchange app
4 3
1 856

I am having trouble configuring the environment in eclipse have download eclipse for java script and web developers followed the video but could not connect to the server I have my Apache server 7.0 added to the java environment and I can start and stop the server through eclipse IDE but when I fire atelier and add server I get the above error any help please .This is the first time I am trying to use the plug in through eclipse .Just in case There is another installation I need to do please advice but I am guessing something to do with atelier not seeing my configurations or permissions

1 7
0 909

I need to check if one class is a subclass of another (either direct or indirect).

For example:

Class Package.ClassA Extends %Library.Persistent
{
}

Class Package.ClassB Extends Package.ClassA 
{
}

Class Package.ClassC Extends Package.ClassB
{
}

In this example Package.ClassC is a subclass of 3 classes: %Library.Persistent, Package.ClassA, Package.ClassB.

So any of these checks should return 1:

0 3
0 913

Hello Fellow Caché Developers,

The purpose of this post is to ask for everyone's thoughts and input around the use of transient, SQLCalculated/Computed properties within persistent classes.

This approach allows for extra data values needed in SQL queries to be available without having to join to other tables.

Very simple/basic example to illustrate the topic:

Let's say I have a persistent class named ICDAutoCodeDefn to hold ICD Auto-Coding definitions, such as:

0 4
0 912

I have a project where I will need to take an HL7 messages and transforms it into a multi-line flat file. I tried creating a complex record map but those require leading data to identify the record type I'm dealing with but based on the destination vendors spec they do not want any leading data prior to the actual data being sent. Also the lines in the output file require different pieces of data pull from different HL7 fields in the messages and in the third field in the flat file I need to generate a unique line number.

Any assistance would be greatly appreciated.

1 9
0 906

What is the best way to create an HL7 message from JSON input file?

We have JSON file available with data required for building the HL7 message . I am trying to use a standard file/FTP Business service to pick up the file and convert the input %FileCharacterStream into a dynamic Object and use the stand JSON features to read /process the data and build the HL7 message.

Is there any other better way to do this? or any standard built-in functionality available in HealthShare?

Thanks you for your help

Mary

0 2
0 913
Question
· Feb 23, 2019
FileSpec wildcard question

For the FIleSpec on a file service can you use a multiple wildcard values like *CLINICALENCOUNTER*.xml?

It seems like you are restricted to a single wildcard value.

0 8
0 907