Related DAX Function

[ukaya19079]

Hi,

I have a question about the RELATED DAX function if someone can help please.

I can create a new column on table X with getting the column from table Y with RELATED function. But it doesn't let me do the opposite ( creating a new column on table Y with getting the column table X).  There is one to many relationship between the table X and Y  and also I tried both cross filter direction but didn't le me. 

[Jihwan_Kim]

Hi,

I am not sure how your desired outcome of the second (creating a new column on table Y with getting the column table X) looks like, but please try using RELATEDTABLE DAX function.

RELATEDTABLE function (DAX) - DAX | Microsoft Learn

[ukaya19079]

Thank you Jihwan_Kim. 

I just watched a tutarial about it. I don't know why but, if there is a 1 to many relation between 2 tables, RELATED DAX will work only on the table where there is many relationships, it won't work on the table where there is only  1 relation. 

Thanks a lot for responding.

PREVIE

[v-cgao-msft · Accepted solution]

Hi @ukaya19079 ,

When there is a one-to-many relationship between two tables, we usually use the RRELATED() function to get unique records from one side. You can create calculated columns in the fact table to verify it.

Column = RELATED(FactTable[Key])

RELATED

Similarly, if we are at one side (DimTable), there will be multiple records in the fact table table corresponding to one of the rows of DimTable, and we use the RELATEDTABLE () function to get the corresponding record in the fact table (a table).

RELATEDTABLE

Best Regards,
Gao
Community Support Team

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

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