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dilkushpatel's avatar
dilkushpatel
Helper III
10 years ago

DATEDIFF_BIG Azure DW Direct Query

Hi, I have used DATEDIFF and I think it is getting translated to DATEDIFF_BIG on backend and there it is giving error that function is not recognised. As per online docs function is available in SQ...
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Vicky_Song's avatar
Vicky_Song
Impactful Individual
10 years ago

Greg_Deckler, dilkushpatel I got the information from our senior engineers that it is an error in the documentation: the function DATEDIFF_BIG is not actually supported in Azure SQL DW. So, that is the reason why you get that error message. A defect is issued to fix the documentation issue, however, no ideas about when this function is going to be available in Azure SQL DW. Thanks for reporting this issue!

dilkushpatel's avatar
dilkushpatel
Helper III
10 years ago

Vicky_Song

I think main problem that I see is Power Bi is translating DATEDIFF function tp DATEDIFF_BIG which is not supported in Azure DW or older versions of SQL

So I guess that needs to change as data source won't be SQL 2016 on prem always.

 

Let me know If I'm wrong.

 

-Dilkush

  • Vicky_Song's avatar
    Vicky_Song
    Impactful Individual
    10 years ago

    dilkushpatel, could you please offer more information about on which steps the DATEDIFF function is converted to DATEDIFF_BIG?