distinct from STUFF

  • Hi,

    SELECT DISTINCT t1.ProjectUID,t1.BWF , t1.Deliverable ,

    --Supressed data columns

    STUFF(

    (SELECT ', ' + (t2.[GeoMarket])

    FROM #deploys t2

    where t1.ProjectUID = t2.ProjectUID AND t1.BWF = t2.BWF AND t1.Deliverable = t2.Deliverable

    FOR XML PATH (''))

    , 1, 1, '') AS List

    INTO #Projection

    FROM #deploys t1

    I expected values like ABC,ACG,ADG but I am getting

    ABC,ABC,ABC,ACGACG,ACG,ADG ,ADG,ADG

    How do I get distinct values ?

    Thanks

    PSB

  • Did you try putting your DISTINCT on the nested SELECT?

    If you haven't even tried to resolve your issue, please don't expect the hard-working volunteers here to waste their time providing links to answers which you could easily have found yourself.

  • Can you help me with where exactly I need to place the distinct ?

  • The scope of your DISTINCT is incorrect. You're enforcing a DISTINCT set of values for the outer SELECT, but at that point the concatenated list is the value of a single column.

    You need to use SELECT DISTINCT at the inner query to do what you're wanting.

    Cheers!

    EDIT: Just noticed Phil already made this point.

  • SELECT DISTINCT t1.ProjectUID,t1.BWF , t1.Deliverable ,

    --Supressed data columns

    STUFF(

    (SELECT ', ' + (DISTINCT t2.[GeoMarket])

    FROM #deploys t2

    where t1.ProjectUID = t2.ProjectUID AND t1.BWF = t2.BWF AND t1.Deliverable = t2.Deliverable

    FOR XML PATH (''))

    , 1, 1, '') AS List

    INTO #Projection

    FROM #deploys t1

    I get an error with this query

  • Yes, that query is incorrect.

    Use SELECT DISTINCT..., not SELECT ','+DISTINCT...

    Cheers!

  • Can you help me where exactly I need the distinct ?

  • Quick untested guess

    😎

    SELECT DISTINCT t1.ProjectUID,t1.BWF , t1.Deliverable ,

    --Supressed data columns

    STUFF(

    (SELECT DISTINCT ', ' + (t2.[GeoMarket])

    FROM #deploys t2

    where t1.ProjectUID = t2.ProjectUID AND t1.BWF = t2.BWF AND t1.Deliverable = t2.Deliverable

    FOR XML PATH (''))

    , 1, 1, '') AS List

    INTO #Projection

    FROM #deploys t1

  • Thanks . 🙂

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