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There's a new and exciting enhancement to QEWD that has just been released - it's an additional layer of abstraction known as QEWD-Up. QEWD-Up hides away all the mechanics of QEWD itself, allowing you to focus on just your REST APIs and the code that implements them.

Additionally, and importantly, QEWD-Up simplifies the maintenance of your REST APIs, allowing you (and others) to quickly and easily understand their life-cycle and implementation.

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Hi,

I am a beginner on intersystems technologies ! and i want implements Oauth2 for our projects ( Angular 2 + Caché REST Backend).

i read the article that the link is below :

https://community.intersystems.com/post/cach%C3%A9-open-authorization-framework-oauth-20-implementation-part-1

But : i need to create all servers ( Auth and Resource ) on Caché and dont' to use google server.

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Hi Community,

We are not using github or any source safe till now. We have ensemble hl7 interfaces (business services, processes, operations)available in production. Now we want to deploy these interfaces to a brand new cloud server with iris instance.

Here in current production we have studio access but new cloud server iris we have only vscode access.

I have exported all the classes from current production using Studio and I have exported xml file with me.

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I am developing a viewer for Crystal Reports using the Crystal Reports for Visual Studio (CR13SP26). I have also installed the latest ODBC Drivers for Cache, but when I connect some reports to the Cache database using a connection string, I get an error that I failed to retrieve data from the database, and it reports the Database Vendor Code 30. Has anyone used Crystal Reports connecting via a connection string and received this error? If so, how did you correct it?

Thank you,

Brian Cromwell

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Question
· Apr 24, 2018
Custom Purge Job

I want to create an interface specific purge job. Please let me know if there are any holes in my approach. I realize that an interface that went from HospitalAService to HospitalARouter to PracticeBOperation would require two separate executes in my example below, but I want that granularity as there are some intermediate steps in our workflows that we don't need to retain messages for.

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Question
· Nov 16, 2016
timeout value

looking for what the timeout value is for the connection for shadowing. and if it is known the timeout for mirroring also.

I'm currently getting this error and when we go to mirroring it would be good to know also, this way we can go back to our network vendor and give them as much info as possible.

10/19/16-12:19:40:696 (d30b6) 2 [SHADOWING] SHADOW SERVER (PRODSHAD): <ZREAD>ReadNone+3^SHDWUTIL;ERROR #1071: TCP read timed out - remote server is not responding (repeated 16 times)

thanks

Paul

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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

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Hi

I get the following error when I am trying to create a linked server connection via MS OLE DB Provider for ODBC Drivers in MS SQL Server Management Studio. The message I get is:

The OLE DB provider "MSDASQL" for linked server "IRIS" reported an error. The provider did not give any information about the error.
Cannot initialize the data source object of OLE DB provider "MSDASQL" for linked server "IRIS". (Framework Microsoft SqlClient Data Provider)

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IMPORTANT NOTE InterSystems no longer provides a separate InterSystems Reports Server container. To run containerized InterSystems Reports Server, use Logi Reports Server container and your InterSystems Reports Server license. Documentation.

InterSystems Reports is powered by Logi Report (formerly named JReport), a product of Logi Analytics. InterSystems Reports is supported by InterSystems IRIS and InterSystems IRIS for Health. It provides a robust modern reporting solution that includes:

  • Embedded operational reporting which can be customized by both report developers and end users.
  • Pixel-perfect formatting that lets you develop highly specific form grids or other special layout elements for invoices, documents, and forms.
  • Banded layouts that provide structure for aggregated and detailed data.
  • Exact positioning of headers, footers, aggregations, detailed data, images, and sub-reports.
  • A variety of page report types.
  • Large-scale dynamic report scheduling and distribution including export to PDF, XLS, HTML, XML, and other file formats, printing, and archiving for regulatory compliance.

InterSystems Reports consists of:

  • A report designer, which provides Design and Preview Tabs that enable report developers to create and preview reports with live data.
  • A report server which provides end users browser-based access to run, schedule, filter, and modify reports.

From InterSystems documentation.

This article focuses on the Server part of InterSystems Reports and provides a guide on running Report Server in containers while persisting all the data.

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Discussion
· Sep 16, 2022
txt2img
Several models, such as DALL-E, Midjourney, and StableDiffusion, became available recently. All these models generate digital images from natural language descriptions. The most interesting one, in my opinion, is StableDiffusion which is open source - released barely a few weeks ago. There's now an entire community trying to leverage it for various use cases.
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Hi folks,

One of my clients want to project a null property of a cache object to an empty XML element. Say, if we have a class:


Class Diabetes.BS.Message.LabReportMessage Extends Ens.Request
{

Property Report As %String;

Property IsRisky As %Boolean;

Property RiskValue As %String ;

}


If the instance of this class has a null RiskValue, after projection, they want the XML as following:

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Article
· Feb 16, 2018 2m read
Adopted Bitmap

The base class Bmap.Person defines persons within an organization distributed
by various countries. All records are indexed by (Country, PersonalId).
this structure doesn't allow use of bitmaps.

So a wrapper class Bmap.PersonQ around the data eliminates the top level of
the index (Country) and isolates the PersonalId (%Integer, MINVAL=1).
We are ready to use a Bitmap index.

A few performance figures on 300010 generated records.
You see that Relative Cost are sometimes quite misleading.

base

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I want to set the value in the second field of OBX-5, or OBX-5-2. My schema is not broken down to that granular level, so I can't just click OBX-5-2 to populate it. I tried a few variations without success.

target.{PIDgrpgrp().ORCgrp().OBXgrp(1).OBX:ObservationValue(1).2}

target.{PIDgrpgrp().ORCgrp().OBXgrp(1).OBX:ObservationValue(1)(2)}

target.{PIDgrpgrp().ORCgrp().OBXgrp(1).OBX:ObservationValue(1.2)}

Any ideas?

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InterSystems Official
· Nov 7, 2016
Feature Tracker in 2017.1

Starting with the Field Test of 2017.1 InterSystems products will include Feature Tracker. It is enabled by default during the Field Test and is explained more fully in the product documentation included below. Information collected by Feature Tracker is limited to technology usage information and instance identification. This tool has been carefully crafted to not transmit sensitive information related to customer applications or data.

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This is not an issue in ObjectScript, due to its typeless nature. But it's essential for external programming languages that care a bit more about types of variables.

And in any case, it's still reproducible in ObjectScript. I have table

CREATE TABLE some_table (
        id INTEGER NOT NULL, 
        x INTEGER, 
        y INTEGER, 
        z VARCHAR(50), 
        PRIMARY KEY (id)
)

And data

INSERT INTO some_table (id, x, y, z) VALUES (1, 1, 2, 'z1');
INSERT INTO some_table (id, x, y, z) VALUES (2, 2, 3, 'z2');
INSERT INTO some_table (id, x, y, z) VALUES (3, 3, 4, 'z3');
INSERT INTO some_table (id, x, y, z) VALUES (4, 4, 5, 'z4');

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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:

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Article
· Oct 23, 2019 2m read
Unit Tests for Data Transforms

Would you like to be sure your data transforms work as expected with a single command? And what about writing unit tests for your data transforms in a quick and simple way?

When talking about interoperability, there are usually a lot of data transforms involved. Those data transforms are used to convert data between different systems or applications in your code, so they are running a very important job.

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Question
· Jun 13, 2022
Comparing Dates

Hi,

Any suggestion on how to compare dates? Below is my code but it does not seem to work.

USER>w $zdate(zdateh(x,8),1) > $zdate($zdateh(y,8),1)

When I set x to "06/01/2022" and set y to "04/01/2022" gives me an output of 1

When I set x to "09/01/2019" and set y to "04/1/2022" still gives me an output of 1

Any help is appreciated.

Thanks!

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The first installment of this article series discussed how to read a big chunk of data from the raw body of an HTTP POST method and save it to a database as a stream property of a class. The second installment discussed how to send files and their names wrapped in a JSON format.

Now let’s look closer at the idea of sending large files in parts to the server. There are several approaches we can use to do this. This article discusses using the Transfer-Encoding header to indicate chunked transfer. The HTTP/1.1 specification introduced the Transfer-Encoding header, and the RFC 7230 section 4.1 described it, but it’s absent from the HTTP/2 specification.

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