Forum Discussion
Return value from another table with one to many relationship within those two tables
- 8 years ago
Hi NoobAnalyst01,
To achieve your requirement, please try following method, see if it works for you:
DOMICILE = CALCULATE ( MAX ( ASSET_ATTRIBUTE[VALUE] ), FILTER ( ASSET_ATTRIBUTE, ASSET_ATTRIBUTE[TYPE] = "REGION" && ASSET_ATTRIBUTE[ASSET_ID] = ASSET[ASSET_ID] ) )Thanks,
Xi Jin. - 8 years ago
Hi Jin,
Thanks,
this works for me.
the only question i have is why in my filter statement, i should include a asset_id=attrtibute_value.
becaue in my relationship, i alredy join those two tables together 1:m relationship.
but when I remove the a asset_id=attrtibute_value in my formula, it doen't work, just wonder is there any reason why we should include this?
Thanks
Frank
Hey,
I would recomend that you take a look at the DAX function LOOKUPVALUE
https://msdn.microsoft.com/en-us/query-bi/dax/lookupvalue-function-dax
From a first glance at your 2 tables I would suggest that you consider to restructure your ASSET_ATTRIBUTE table, create new columns from the Type column for all your asset ids.
As far as I can guess all the types are describing the asset anf for this reason it would make sense to transform your wide table into a long table.
Even if this article was not written with Power BI tables in mind it is the shortes read about tidy data :)
https://www.jstatsoft.org/article/view/v059i10/v59i10.pdf
Regards
Tom
there is a alteltive solution i think is duplaice the attribute table for 3 tables, and each table filter one type in the query editor step; then it will be one to one relationship with the main table.
- Zubair_Muhammad8 years ago
Community Champion
- NoobAnalyst018 years ago
Helper I
will try.