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#InterSystems IRIS

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InterSystems IRIS is a Complete Data Platform
InterSystems IRIS gives you everything you need to capture, share, understand, and act upon your organization’s most valuable asset – your data.
As a complete platform, InterSystems IRIS eliminates the need to integrate multiple development technologies. Applications require less code, fewer system resources, and less maintenance.

Question
· Aug 4, 2021
Azure Mirroring - VIP

Has anyone firstly got VIP working for mirroring in Azure? We are pretty sure that this won't work but I wanted to verify it.

Has anyone used the Azure Load balancer to act as a Virtual IP and if so was a application gateway required.

Interested to know your experiences in getting this working.

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Question
· Jan 8, 2022
SQL LOAD DATA date values

I have csv date file with date values like this "4/10/2021" for April 10, 2021. I defined a table with this property: Property TranDate As %Library.Date.

I capture error

[SQLCODE: <-104>:<Field validation failed in INSERT, or value failed to convert in DisplayToLogical or OdbcToLogical>] [Location: <ServerLoop>] [%msg: <Field 'dc_data_finance.transact.TranDate' (value '4/10/2021') failed validation Field ...

I do not really want to change TranDate to %String. How can I import "4/10/2021" into %Date property?

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Hi,

The company I work for has one software application that uses an IRIS database, with almost all the others using SQL databases.

On a SQL database, we can create local tables and create views. These are invaluable when it comes to reporting, and everyone here is quite up to speed with using SSMS to create functions, stored procedures, etc.

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Hello all,

I was looking at some code of a business service of which the author is unknown. It's very simple in what it does; it extends from Ens.BusinessService and has a method that performs SendRequestSync() to a business process. However, I noticed that the business service lacks an OnProcessInput() method. Rather, it uses a method called General() which has the same sort of signature/structure that OnProcess input does--pInput as [Custom Message Class], Output pOutput as [Custom Response Class].

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Question
· Jun 29, 2022
Measuring Global References ````

I had a customer the other day ask how GREFs are measured and how the relationship of the host, storage, and DB engine all influence that number measured in hundreds of thousands or millions. Is there any good documentation that explains this and/or assists with calculating a GREF count?

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Question
· Aug 12, 2022
Password requirements

Many password requirements can be enforced using a password validation routine which is available to implement in System Management Portal. But how about this one:

Check that at least 50% of the characters changed from old password to new password.

We need to have access to the old password to check this, currently password validation routine only gets the new password.

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Hi folks!

How can I refer to a classmethod of the same class while coding another classmethod with Embedded python?

I know that I can call it with iris.cls(classname).MethodName(), but it's more cumbersome even comparing with ObjectScript, where I can call ..MethodName().

Compare ObjectScript:

do ..SetupGame()

and the same call in EmbeddedPython:

    iris.cls('eshvarov.sample.SeaBattle.GamePython').SetupGame()

Thoughts?

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In Cache 2018, we were using a macro in a query that looked like this:

select $$GetExtraSQL^GetExtra('B',bddtl.odnumb,bddtl.odsnum,bddtl.oddsc1) as "Description", * from sqluser.bddtl

We could save that query as a view, and there was no problem with it.

In IRIS, if we put that query into SQL in the management portal, it still works, but if we save that query as a view, when we try to run a query on that view, we get a big error message:

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Question
· Nov 15, 2022
Message Router "Copy"

I copied an existing message router and when I make changes to the rules in the copy it changes the values in the original message rounter.

How can I update my copy to have unqie values in my rules.

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Hi all,

I am trying to use some process private variables (percent variables) in Triggers.

I am referring to values from $System.Process, like the ClientIPAddress and CSPSessionID.
These do to not contain values and I suspect it is bacause of scope. I also checked, and the %session variable is not available if the change originated from a CSP request.
I know that in triggers the scope of the variables are to be kept local, that is why NEW is to be used.

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Recently i've been using Restforms2 to create a CRUD API for a project. But it lacks some advanced functionality that we need, so we have created a production with a REST WS which handles those advanced methods. That works great but there's a drawback, it does not have authentication.

I would want to use the same authentication method as Restforms2 which is a basic auth using IRIS users and passwords.

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Out of curiosity, I was looking in ^ROUTINE global to see how routines are stored internally.

I found out that lot of nodes are displaying "~pointer" as associated value (eg: instead of a string).

What are those pointers ? My guess is that it references some cache internal structure (eg: some nodes inside a B-Tree).

Is there a easily way to see what is behind ? Are pointers useful for user globals or is this something purely internal to Cache database ?

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Question
· Apr 1, 2023
NOT %INLIST

Hi.

I have a query:

SELECT '['||Material->Sifra||'] '||Material->Opis AS Material,
SUM(MasaBlago) AS MasaBlago
FROM Tehtanje.Dokument
WHERE DatumDokumenta BETWEEN '01/01/2023' AND '04/01/2023'
AND (Material->Sifra %INLIST $LISTFROMSTRING('5,7',','))
GROUP BY Material
ORDER BY %EXACT Material

The query returns all rows where Material->Sifra is 5 or 7. That's OK.

If I want to get all rows where Material->Sifra is NOT 5 or 7 I use query:

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If I had:
________________________________________
Class MN.Student Extends %Persistent
{
Property Name As %String;
________________________________________
Class MN.Course Extends %Persistent
{
Property TeacherName As %String;
Relationship StudentName As MN.Student [ Cardinality = one, Inverse = Name ];
________________________________________

For "Cardinality = one" the SQL line below would be sufficient for archiving
INSERT INTO MN.Course (TeacherName, StudentName) VALUES ('Pierre','3')"

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