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Count distinct values Issue with non unique
Hello I have a simple issue: Source table Aggregated table: How to get only a count for a link that has a non-null value? In this case, I should get 3: link1+link2+link4=3 Power BI ...
try the following formula:
countdistinctnonblank = CALCULATE(DISTINCTCOUNTNOBLANK(emails[link]), emails[link]<>"" && NOT ISBLANK(emails[link]))
Hello ignas
I used 'Calculate' function as I had to apply filters (e.g. <>"" && NOT IS BLANK) in the formula.
You can only apply filters in a formula through the CALCULATE function.
https://docs.microsoft.com/en-us/dax/calculate-function-dax
themistoklis
I understand how CALCULATE function works. I just cannot understand why I cannot use only DISTINCTCOUNTNOBLANK function in this case? Why if I only use DISTINCTCOUNTNOBLANK it still gives me a value of 4 which means it still counts blanks.
It has to do with your background data. PowerBI treats differently Blank, NULL and EMPTY values.
Maybe the following 2 articles will give you the answer:
https://www.sqlbi.com/articles/blank-handling-in-dax/