All time
Article
· Feb 19, 2016 1m read
Simple WorkMgr example

Attached code contains a very basic $system.WorkMgr example.

It uses several jobs (workers) to update different chunks of rows of a table.

Steps:

  • Creates a table with 100 records.
  • Split table in chunks
  • Initialize WorkMgr and queue chunks to workers.
    • Every worker simply sets its process number in the Job field of the processed row.

In this case, I have tested the example in a 8-core laptop:

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Atelier Users:

Has anyone found an Eclipse plug-in that provides the capability to connect to a Caché server and give the user a way to write SQL queries using the tables from that server? I'm picturing something like a "WinSQL"-client built as an Eclipse plugin.

I've found and tried the following, but I couldn't get it to connect to my local Caché instance.

http://eclipsesql.sourceforge.net/

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Article
· Mar 15, 2019 2m read
Tar compress tool in ObjectScript

I'm sure most of you have already familiar with the possibility of using GZIP in InterSystems products. But, the problem is that GZIP working only with one file or stream, and it does not support folders. When you work in Unix systems, there is a possibility how to solve it, using tar compress tool which goes with every Linux system from out of the box. But what to do if you have work on Windows as well, which does not have it.

I am pleased to offer you my new project isc-tar, which will help you do not care about operating system, and deal with tar files anywhere.

Open Exchange app
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Question
· Apr 3, 2018
Comparing Cache-Objects

Hi guys,

is there an easy way to compare two objects in os?

Example:

I have a registered order-object at runtime. Now I want to call a specific export-service just in the case that sth in this order has changed since the last export. So I have to compare the persisted order-object (last export) with the current order-object.

Ist there an easy way to compare these two objects or do I have to check each object-value separately?

Thanks for your help!

Regards, Thomas

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Question
· Oct 10, 2018
Reply Code Actions

Hi!

We would like to retry message so that it's restored to end of operation's queue. This is in situation where order of messages is not needed to be handled by Ensemble, there is version number in message data and receiving application can ignore incoming message if necessary.

We would try to send message until it's accepted (or manually suspended), but this should not block operation's queue.

We have already this in actions:

D - Disable the Operation, log an error and restore the message to the front of the Operation's queue.

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GA releases are now published for the 2020.2 version of InterSystems IRIS, IRIS for Health, and IRIS Studio!

A full set of containers for these products are available from the WRC Software Distribution site, including community editions of InterSystems IRIS and IRIS for Health.

The build number for these releases is 2020.2.0.211.0.

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I have a class that has a property calledTags (like DescriptiveWords, but tags), where multiple tags are possible. I am trying to decide on list of Objects vs. array of Objects.

Based on this post: https://community.intersystems.com/post/querying-list-property-sql, sounds like using an array of Objects is the better way to go. Indeed, I already noticed that it's not possible to have duplicates when using an array of Objects.

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If you've got more than one developer on a project, do you each work in your own namespace? Or do you all use a common namespace?

Through my work at George James Software I have encountered many different Caché and Ensemble development setups. At risk of over-generalizing, the older and more established users of InterSystems technologies seem more likely to have all their developers working in a common namespace, whereas the newer 'converts' tend to favour giving each developer their own namespace.

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Hello, I need to use IRIS to connect to an MSSQL base.
It has to be done via ODBC, I can't use JDBC at this time by client option.

I am trying to use Microsoft Driver
libmsodbcsql-13.1.so.9.2

But I can't, my attempts result in:
Connection failed.
SQLState: () NativeError: [11001] Message:

I have done all DSN configuration, and my configuration is listed in SQL Gateway Connections. I know it's working, because when I run a test with isql I have the information that connects to the bank.

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Article
· Sep 13, 2018 1m read
Find a table given its name

The following code snippet includes a class method "test" that runs code to find a class based on the class's name. "test" takes one argument, which is the name of the table:


Class objectscript.findTable Extends %RegisteredObject
{
    classmethod test(name as %String="mytable")  
    {
            #Dim result as %ResultSet
            #Dim tName as %String
            #Dim contain as %Integer
     
            Set contain=0
            Set result = ##class(%ResultSet).%New("%Dictionary.ClassDefinition:Summary")
            Do result.Execute()

            While(result.Next()) 
            {
                Set tName=$get(result.Data("Name"))
                &sql(select position (:name in :tName) into :contain)
                Write:contain'=0 tName, " ... ", name, " (", contain,")", !
            }
            Return $$$OK
     }
}

Here's a link to the code on GitHub

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InterSystems Official
· Apr 27, 2017
VSI OpenVMS

The last version of Caché, Ensemble released for VSI OpenVMS is 2017.1. Unlike HP OpenVMS (Alpha and Itanium), VSI OpenVMS on Itanium continues to be supported. This means that critical corrections or changes required to support customer’s hardware purchases will all be based on 2017.1 or earlier versions.

Related announcement: https://community.intersystems.com/post/platform-compatibility-hp-open-vms

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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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Overview

We often run into connectivity problems with HealthShare (HS) deployments in Microsoft Azure that have multiple HealthShare components (instances or namespaces) installed on the same VM, especially when needing to communicate to other HS components while using the Azure Load Balancer (ILB) to provide mirror VIP functionality. Details on how and why a load balancer is used with database mirroring can be found this community article.

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I have a CACHE.DAT file that is working under CACHE version 2015.1.0.429.0

I have a second machine with CACHE version 2017.2.0.741.0

When I attempt to add/use the CACHE.DAT in the new version of CACHE, it will not mount.

How do I upgrade/convert the DAT file to make it work under the new CACHE version?

Thx. Larry...

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Welcome to NewBie's Corner, a weekly or biweekly post covering basic Caché Material.

MUMPS verses Caché, what's the difference?

MUMPS was developed at Massachusetts General Hospital during the 1960s. Through a series of experiences and companies over the years eventually MUMPS evolved into Caché. Some deny this but the facts are there. You can read through the various websites with Wikipedia and make up your own mind. The closest way to explain this is that Caché is a superset of MUMPS.

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