Check if class exists

There is method:

$System.OBJ.New( ClassName As  %String = "" )

If class with name ClassName exists - everything is OK.

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Anomaly in German sorting

Since centuries the German language carries along a special character
that had no upper case representation. End o f June 2017  there was the

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Installation problems with Cache

Hi all, I'm running into an issue with the installation, it seems like almost everything is working alright but upon trying to actual access the Management Portal, the site cannot be reached.

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Come to the 1st InterSystems Community Meetup in Cambridge!

Hi, Community!

Recently we announced Developer Community Meetup in Cambridge, MA. Let me describe what is it. 

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Ens.StreamContainer

Hi All,

I am fairly new to Ensemble and I wanted to know I have inbound business service (EnsLib.File.PassthroughService) which is looking for pdf files once it finds a pdf file (within the business process) it needs to find the associated xml file which would be in the same directory. Once both of these files are found they need to be sent to the business operation and deleted from the source (EnsLib.File.PassthroughOperation). 

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MonCaché - Caché as MongoDB

MonCaché — MongoDB API implementation based on InterSystems Caché

 

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Using %CSP.REST to serve files

Hello fellow developers,

I am currently in need of a way to serve files dynamically (sending specific replacements for when the requested file doesn't exist, possibly depending on other conditions such as passed parameters).

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select sql error

hi

  I execute sql  like this:  select * from DHC_PatBillDetails where PBD_PBO_ParRef>='2046121'

 

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Asynchronous Websockets -- a quick tutorial

Intro

The goal of this post is to discuss working with Websockets in a Caché environment. We are going to have a quick discussion of what websockets are and then talk through an example chat application implemented on top of Websockets.

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Let's write an Angular 1.x app with a Caché REST backend - start here

So, one day you're working away at WidgetsDirect, the leading supplier of widget and widget accessories, when your boss asks you to develop the new customer facing portal to allow the client base to access the nex

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Macros in the InterSystems Caché

In this article I would like to tell you about macros in InterSystems Caché. A macro is a symbolic name that is replaced with a set of instructions during compilation. A macro can “unfold” in various instruction sets each time it is called, depending on the parameters passed to it and activated scenarios. This can be both static code and the result of ObjectScript execution. Let's take a look at how you can use them in your application.

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Advanced URL mapping for REST

By now it's a commonplace how to implement a basic REST API in Caché and there is good documentation about it here:

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Community Members' Analytics

Hi, Community!

We introduced the new dashboard which shows the stats on members' articles, questions, and answers.

Hope it would help you to find the authors you would like to follow and find interesting posts you could miss.

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$Case or $Select?

What is a major difference between $case and $select?

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how to release memory for process?

hi

  I query large mount of rows from one table with JDBC, and will prompt <store> error.  I found that it was out of process memory (default 16M, max 49M in version 2010.2) .

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