Understanding expanded tables

Anonymous — Fri, 22 Oct 2021 11:55:37 GMT

Hello,

Please, consider this situation:

Product table, with a one-to-many relationship with a Sales table (following case presented in this sqlbi.com article).

I want to understand the behaviour of using expanded tables.

If I write this measure:

NumOfProductsSold = CALCULATE ( COUNT('Product'[ProductKey]), Sales )

It will return me the number of products sold, but a distinct list of the products sold, not a simple count of products.
Why?
Isn't this using the expanded tables of Sales, and therefore the related Product columns of this expanded table? If this was the case the values would not contain only the distinct values.
Can anybody please clearly explain what is going on?

Thanks,

Re: Understanding expanded tables

v-chuncz-msft — Tue, 26 Oct 2021 09:20:02 GMT

Anonymous

See LEFT OUTER JOIN in https://www.sqlbi.com/articles/expanded-tables-in-dax/ and learn https://www.sqlbi.com/articles/capturing-power-bi-queries-using-dax-studio/.

topic Re: Understanding expanded tables in DAX Commands and Tips

Understanding expanded tables

Re: Understanding expanded tables