Group by calculation

[Julien74]

Hi, 

I have a table like that (with text Id)

and I want to obtain a group by like that which sum is distinct number of Id by departement 

Thank you

Julien 

[Shaurya]

Hi @Julien74,

Use the following DAX Code:

New Table = SUMMARIZE('Table', 'Table'[Service], "Month",MONTH('Table'[Date], "Count",DISTINCTCOUNT('Table'[ID]))

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[Julien74]

Hi @Shaurya 

I'm sorry but i can't find 'Table'[Date] (but date is in my table)  in your formula and the month function accept only one argument. 

[Shaurya]

Hi @Julien74,

'Table'[Date] is simply the name of the table and date column in your model. About the month paramter, I missed a bracket.

New Table = SUMMARIZE('Table', 'Table'[Service],
"Month", MONTH('Table'[Date]),
"Count", DISTINCTCOUNT('Table'[ID]))

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[Julien74]

Hi thanks for your answer. I understand well it's the column on my model. But it says thats is impossible to determine a unique value for my column "date" 

[v-cgao-msft · Accepted solution]

Hi @Julien74 ,

Please try:

New Table =
SUMMARIZE (
    'Table',
    'Table'[Serivice],
    'Table'[Date],
    "Month", FORMAT ( 'Table'[Date], "mmmm" ),
    "Count", DISTINCTCOUNT ( 'Table'[ID] )
)

Since measure only return scalar, you must introduce entity columns to group data. Similarly, if you want a measure, you need to create a calculated column in the original table.

Month = FORMAT('Table'[Date],"mmmm")

Then new a meaure:

Count = DISTINCTCOUNT('Table'[ID])

Then use [Count],'Table'[Month] and 'Table'[Serivice] in a table visual.

Best Regards,
Gao
Community Support Team

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