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We have a query that looks something like:

select a, b, c, d, e, f

from tbla inner join tblb on tbla.....

This query runs in the expected 200-400 ms range.

If we run the same query but reduce the select to just:

select a

from tbla inner join tblb on tbla.....

then the query runs for 30 minutes or more.

The rest of the query is identical. Is there a logical explanation for how this can happen?

Thanks.

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Article
· Jul 16, 2024 6m read
Method or Class Method?

For programmers new to ObjectScript, one question will inevitably arise: “What is the difference between methods and class methods?” A typical answer would be: “A class method applies to a class, but a method applies to an instance of that class.” While that answer is correct, it lacks important information on how these methods di

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Question
· May 28, 2022
Write JSON file in HTTPREQUEST

Hi Guys,

how can I write a json file in httprequest, I'm using the below but when I check what's in mystring it's actually truncated and doen't include all my file?

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Hi All,
I am implementing REST API's in IRIS using the below link as a guide.
I chose this approach so i could have a single entry point for requests regardless of namespace

https://community.intersystems.com/post/restful-exception-handling

a sample form the HIHLib.REST.Server class i am using is below. my question is does IRIS and CSP cache responses for requests to the CSP.REST class?
and if so what parameters or properties do i need to enable?

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Hi:

I have an sql outbound adapter. Sometimes we have trouble connecting to the database.

The timeout in develpment is set to 15 seconds in live it is 150 seconds as it is an always connected Buisness operation.

I thought adding E=S or/and X=S would suspend the message. Why does it not?

Is the only way around then adding something to the buisness operation itself/ creating a customised SQL buisness operation rather than EnsLib.SQL.OutboundAdapter?

Thanks

Mark

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Is there a way to get dynamic object from iterator?

set arr=[1,2,3]
set iter=arr.%GetIterator()

I pass iterator several frames down and I'd rather avoid passing both the array and iterator, but for debugging I need to access original object in a situation where only iterator is available.

Is there a way to do it?

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Hello everyone :-)

I would like to update Atelier from version 1.0.262 to the 1.3 one. So I clicked on Help --> Check for updates, and I get these first error messages:

"No updates were found in available software sites."

"Some sites could not be found. See the error log for more detail." etc. cf picture below talking about Proxy Authentication.

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I've created a scheduled task that dumps HL7 messages to flat files. It uses the OutputToLibraryStream() method of EnsLib.HL7.Message. I'd like to be able to run it on a mirror member host whether it's primary or backup.

When run against a database that's mounted read-only, it works fine. However, when I attempt to run it against a mirror backup database, I get the following error:

#5002: Cache error: <PROTECT>%LoadData+7^EnsLib.HL7.Message.1

Tracing that back to the source, I find:

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Hi Everyone!

You're very welcome to watch the new video on InterSystems Developers YouTube, recorded by @Sourabh Sethi in a new format called "Coding Talks":

Locking in InterSystems ObjectScript

https://www.youtube.com/embed/_v2ga5B0ZJk
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I need to open a Windows explorer window by pressing button on a Zen page.

Is this possible.? I

performed a search but I did not find anything.

The command I used in the terminal was D $zf(-2,"START C:\WINDOWS\SYSTEM32").

I am not sure how to use this in a Zen application.

Any help will be greatly appreciated.

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In our table, we have a column cities, which has a filter which displays the cities of a state depending on the state

For simplicity let's assume we have a page

Property State As %String = "CA"

Our filter should run this query to show all cities of state ca

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My team and I noticed that the %ZEN class documentation labeled all properties and methods as deprecated.

Example: %ZEN.Auxiliary.altJSONProvider - InterSystems IRIS Data Platform 2024.1 - including private class members

In this regard, the big question is: what will be used to replace these methods, in particular %ZEN.Auxiliary.altJSONProvider?

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Monitoring IRIS through SAM (sam:1.0.0.115)

While I've used to make it work in the past, I'm not able any more to fix the already faced issue : "State: Unreachable"

Despite all the ip-addresses attempts (or hostname = host.docker.internal) and while "/api/monitor/metrics" is running well...

Could someone provide good practices to make it work cleanly ?

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If I open a terminal and type the following commands, sc is an error:

set validator = "sc = ##class(%Library.Numeric).IsValid(""BLAH"")"
set @validator
write sc

At the end, when I write sc I get:

0 L'BLAH9
             DOCXT010,#e^zIsValid+1^%Library.Numeric.1^1e^^^1

However, if I call the following class method using the arguments "%Library.Numeric" and "BLAH", sc is undefined

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Question
· Mar 29, 2019
Ensemble as a Data lake

We have been storing raw messages in a MySQL database for DR and ad hoc purposes. We are thinking of using an Ensemble instance as our data lake instead. We could segregate the source data by namespace or by global. But either way we'll want a custom global to index the data for data retrieval performance purposes.

Anyone else taking this approach? Any feedback?

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I am new to Intersystems Cache, so please bear with me. We are using HealthShare 2013.1.

I have a routine to compare databases from separate instances where I want to ignore values that begin with %sqlcq. I thought this would be easy with pattern matching operator '?' but it is proving difficult and it seems to be because of the percent character.

For example:

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Just starting to use Atelier and having problems with making server connections. I have tried both the super server port and the web server port and both fail with either Unexpected end of file from server (Secure connection disabled) or PKIX path building failed (Secure connection enabled). On a different server I get Connection refused: check the web server configuration.

Anyone run into this before?

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Working on a project where we have a web browser that we have to determine a pickup date/time for a pharmacy in a different time zones.

We store the different time zones with their Daylight and Standard offsets.

We have a object script method that figures out the the pickup date/time for a particular pharmacy in their local time zone but the data is being returned in the $H format.

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InterSystems announces its seventh preview, as part of the developer preview program for the 2023.2 release. This release will include InterSystems IRIS and InterSystems IRIS for Health.

Discontinuation of the Private Web Server (PWS)

A major topic in this release is the discontinuation of the Private Web Server (PWS) from the installers. This feature has been announced since last year and it's removed from InterSystems installers, starting with this developer preview.

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Hey Community,

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ Let InterSystems IRIS Do the Work: Git Source Control & Linting ObjectScript Across Editors @ Global Summit 2022

https://www.youtube.com/embed/Fh0uyC9owyE
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