Showing results for 
Search instead for 
Did you mean: 

Fabric is Generally Available. Browse Fabric Presentations. Work towards your Fabric certification with the Cloud Skills Challenge.

Frequent Visitor

How To Count Distinct States Based Distinct PersonsNames


I have two columns in a table.  State and PersonsName.  I want to calculate the count of distinct states that contain more than 10 distinct PersonsName.  

Almost like how a GROUP BY in SQL would work.


Any ideas on how to accomplish this? 

Thank you!

Memorable Member
Memorable Member



I made a PBI with diffrent options for your questions.

I made a table with 2 columns (States and PersonName) and gave you 5 options :

1/ In Power Query by making a Group By. Good option if you don't need you data in details. See my first query for that option.

2/ Using DAX, you can make a basic calculation but your totals will be wrong, because of the lack of filter context on totals.

NbPersonDAX_Mesure = DISTINCTCOUNT(TableStatesPersonDAX[PersonName])
Works for every lines of your table except for the total.
3/ Using DAX with variable, works on the rows of the table but gives not total, since not current state available :
NbPersonDAX_Mesure v2 = 
VAR CurrState=SELECTEDVALUE(TableStatesPersonDAX[States])
A little better since you do not have a wrong total, but maybe you need the total ?
4/ The solution I would recommend would be :
NbPersonDAX_Mesure v3 = SUMX( VALUES(TableStatesPersonDAX[States]) , 
                            CALCULATE( DISTINCTCOUNT( TableStatesPersonDAX[PersonName] ) ) )
Do not forget the CALCULATE before DISTINCTCOUNT because it provides the context transition needed in this case. Making the right count on the rows and the good total at the bottom of your table.
Or even better, test the formula with and without the CALCULATE to see by yourself the context transition.
5/ Create a summarized table in DAX with a filter :
TableDAX_withFILTER = FILTER( SUMMARIZECOLUMNS(TableStatesPersonDAX[States], "NbPersonStates" , 
DISTINCTCOUNT(TableStatesPersonDAX[PersonName])) ,[NbPersonStates]>2 )
If you need to display or make many calculations on those synthesis, could be an option as well.
Hope this will help you and others,
Please find attached demo pbix
Super User
Super User

You can use DAX formula to achieve this in Power BI. Here's an example measure that counts the distinct states that have more than 10 distinct PersonNames:

Distinct States with >10 PersonNames = COUNTROWS( FILTER( SUMMARIZE( Table1, Table1[State], "DistinctPersonNames", DISTINCTCOUNT(Table1[PersonsName]) ), [DistinctPersonNames] > 10 ) )

Here, we use the SUMMARIZE function to group the data by State and calculate the number of distinct PersonNames for each State. Then we use the FILTER function to include only those rows where the count of distinct PersonNames is greater than 10, and finally use the COUNTROWS function to count the number of distinct States that meet this condition.

Replace "Table1" with the name of your actual table and "State" and "PersonsName" with the names of your actual columns.


Helpful resources

PBI November 2023 Update Carousel

Power BI Monthly Update - November 2023

Check out the November 2023 Power BI update to learn about new features.

Community News

Fabric Community News unified experience

Read the latest Fabric Community announcements, including updates on Power BI, Synapse, Data Factory and Data Activator.

Power BI Fabric Summit Carousel

The largest Power BI and Fabric virtual conference

130+ sessions, 130+ speakers, Product managers, MVPs, and experts. All about Power BI and Fabric. Attend online or watch the recordings.

Top Solution Authors
Top Kudoed Authors