DISTINCT Function in PowerApps

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Posted on by manjotsingh057

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I have a on premise SQL table where we have 16000 records.

There is a column Named "ApplicationType".

We want to populate a dropdown in PowerApps with unique Application Type values that are there in that table.

So i used below query to fetch distinct Application Type values.

Distinct('[dbo].[SpecialProjects]',ApplicationType);

Issue :

Since PowerApp fetches 200 records at one time so this formula retrieves distinct values only for those 200 records.

This way i get only 1 unique ApplicationType values out of 3.

Any way by which we can get all distinct values of a column from SQL table?

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Building Power Apps

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timl 37,248 Super User 2026 Season 1 on at

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Hi @manjotsingh057

The way to do this is to create a SQL Server View that returns your distinct values.

https://powerusers.microsoft.com/t5/General-Discussion/Retrieve-distinct-values-over-a-column-from-SQL-Server-data/td-p/171409

Post back here if you need more specific details on how to do this.

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manjotsingh057 164 on at

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@timl
Thanks for that post.
But if i want to create a cascaded drop downs, Will that be possible based on this logic ? Since i will not be knowing what all values would be there in next set of results that would be Loaded by PowerApps ?

Scenerio:
Page has multiple drop down fields which filter the results.
You select value from drop down 1 and based on the results received drop down 2 values should be filtered as well.
Once you select drop down 2 values then again following same logic.

Thanks in Advance !!

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timl 37,248 Super User 2026 Season 1 on at

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Hi @manjotsingh057

Yes, it's possible to build cascading drop downs with SQL Views.

My post towards the end of this thread includes some sample formula.

https://powerusers.microsoft.com/t5/General-Discussion/Slice-Large-SQL-Table-By-Multiple-Parameters/td-p/176328/page/2

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manjotsingh057 164 on at

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Thanks a lot @timl
That works.

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