Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

The Power BI DataViz World Championships are on! With four chances to enter, you could win a spot in the LIVE Grand Finale in Las Vegas. Show off your skills.

Reply
pbix
Helper III
Helper III

DAX SQL window function equivalent

Hello,

 

I would like to create a calculated column that returns a total row count per customer, as below.

 

http://imgur.com/WJ2MzJS

 

To do this with SQL, one approach would be to use a window function like:

 

COUNT(*) OVER (PARTITION BY CUSTOMER ORDER BY NULL)

 

Could someone please demonstrate how to achieve the same result using DAX?

 

Thanks!

 

Pbix

1 ACCEPTED SOLUTION
Eric_Zhang
Microsoft Employee
Microsoft Employee

@pbix

Check

 

Column =
COUNTAX (
    FILTER ( 'Table', EARLIER ( 'Table'[Customer No.] ) = 'Table'[Customer No.] ),
    'Table'[Product Purchased]
)

 Capture.PNG

 

A good site for your reference.

View solution in original post

3 REPLIES 3
Eric_Zhang
Microsoft Employee
Microsoft Employee

@pbix

Check

 

Column =
COUNTAX (
    FILTER ( 'Table', EARLIER ( 'Table'[Customer No.] ) = 'Table'[Customer No.] ),
    'Table'[Product Purchased]
)

 Capture.PNG

 

A good site for your reference.

What if we have unsorted list of Customer No.? They this formula shouldn't work, yes?

Lovely, thanks very much.

 

 

Helpful resources

Announcements
Feb2025 Sticker Challenge

Join our Community Sticker Challenge 2025

If you love stickers, then you will definitely want to check out our Community Sticker Challenge!

Jan NL Carousel

Fabric Community Update - January 2025

Find out what's new and trending in the Fabric community.