Presenter: Anton Umnikov
Task: Run SQL queries quickly on huge amounts of data
Approach: Use a shared-nothing architecture to leverage a cluster of small, cost-effective servers

Explains how a shared nothing architecture allows you to leverage a cluster of small, costeffective servers to serve query results that would have taken much longer on a single, big and expensive box. This brings affordable horizontal scalability.

Content related to this session, including slides, video and additional learning content can be found here.

Hi Community,

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ Querying 6 Terabytes of Protected Health Information at Northwell @ Global Summit 2022

https://www.youtube.com/embed/66rZCdX7m8U
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hi world, i want to browse an sql table on cache, and get min ,max value from one collumn, how can i do it ?

thank's

In $system.SQL.Shell(), it would also report the number of global references for a given query.

Is it possible that I could also get this statistics from the %SQL.Statement interface when I launch a dynamic sql?

Thanks.

Hi guys!!

In the system that I work, I came across an iterator pattern that uses the %Resultset library without performing the close after executing the query. Does anyone know how to say what are the impacts of not performing such a procedure?

If you have any model of iterator pattern made in caché to recommend as a good example, I will be grateful hehe :D

After so many years of waiting, we finally got an official driver available on Pypi

Additionally, found JDBC driver finally available on Maven already for 3 months, and .Net driver on Nuget more than a month.

As an author of so many implementations of IRIS support for various Python libraries, I wanted to check it. Implementation of DB-API means that it should be replaceable and at least functions defined in the standard. The only difference should be in SQL.

And the beauty of using already existing libraries, that they already implemented other databases by using DB-API standard, and these libraries already expect how driver should work.

I decided to test InterSystems official driver by implementing its support in SQLAlchemy-iris library.

Hi, what’s the best way to check if your query return 0 records?

The InterSystems IRIS has a series of facilitators to capture, persist, interoperate, and generate analytical information from data in XML format. This article will demonstrate how to do the following:

1. Capture XML (via a file in our example);
2. Process the data captured in interoperability;
3. Persist XML in persistent entities/tables;
4. Create analytical views for the captured XML data.

Capture XML data

The InterSystems IRIS has many built-in adapters to capture data, including the next ones:

Hi Developers,

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ InterSystems IRIS Cloud SQL @ Global Summit 2022

https://www.youtube.com/embed/QLaAH5o60y0
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Hi,

we're planning some work on our SQL Query Plan functionality for a future release of InterSystems IRIS and are interested to hear how you're using them today, or what'd keep you from using them. Rather than try and fit everything in a rigid survey, I thought a simple thread on our beloved DC might also reveal some use patterns that we support or could do a better job on.

Hi Community,

I am trying to save data into SQL table but each entry getting saved twice in the SQL table. Is there any reason data is saving Twice in the SQL table

I have created a %Persistent class for the fields

Please find the business operation below

Class Patient.DBOperation Extends Ens.BusinessOperation

{

Parameter ADAPTER = "EnsLib.SQL.OutboundAdapter";

Property Adapter As EnsLib.SQL.OutboundAdapter;

Parameter INVOCATION = "Queue";

Hi,

Could someone help me in identifying all characters in a column is whole number 0 or greater

CASE WHEN '123' %MATCHES '[0-9]*' then 'VALID' else 'INVALID' end

The above statement is finding only for first character.

Thanks

InterSystems FAQ rubric

Query cache can be purged programmatically using the Purge* methods of the %SYSTEM.SQL class.

*For details of each method, please refer to the following documents.

%SYSTEM.SQL class【IRIS】

%SYSTEM.SQL class

I have a table with a Varchar(max) column that I have created via the HealthShare SQL portal, and I see that in it's underlying class that column corresponds to a %Stream.GlobalCharacter

When I try to do a text search on that column (referenced as cd.Code in the example below) I get an error