topic Re: RANKX across multiple tables in DAX Commands and Tips

RANKX across multiple tables

2366 — Thu, 28 Jul 2022 16:35:24 GMT

Hi,

I have the below tables in my data model - With the current RANKX expression I am able to Rank product sales across all cities but my desired output is to calculate sales of my products across different countries which is my dimension table and Rank sales based on product and across countries. Since I cannot use ALL(ProductID,Country) I am not sure how to get around this. Please help!

Thanks

1) Fact Sales

ProductID	City	Sales
1	London	100
2	Paris	300
1	Paris	300
3	London	250
2	Milan	350
1	Milan	150

2) Dim Country

City	Country
London	UK
Paris	France
Milan	Italy

Existing Measure - Calculate(RANKX(All('Fact Sales'[ProductID]), SUM(Sales),,DESC,),Removefilter('Dim Country'[Country]))

ProductID	Country	Sales	Rank
1	UK	100	2
1	France	300	2
1	Italy	150	2
2	France	300	1
2	Italy	350	1
3	UK	250	3

Expected Output

ProductID	Country	Sales	Rank
1	UK	100	5
1	France	300	2
1	Italy	150	4
2	France	300	2
2	Italy	350	1
3	UK	250	3

Re: RANKX across multiple tables

amitchandak — Thu, 28 Jul 2022 17:25:29 GMT

2366 , Try Rank like

RANKX(Summarize(All('Fact Sales'),'Fact Sales'[ProductID],'Dim Country'[Country] ), SUM(Sales),,DESC,)

Power BI Rank Across dimension tables: https://youtu.be/X59qp5gfQoA

Re: RANKX across multiple tables

Jos_Woolley — Thu, 28 Jul 2022 18:12:01 GMT

Hi,

In this case, auto-exist will not apply and so you need to be careful to avoid ending up with a visual which contains additional entries due to the cross-join between the two tables. So I would try something like:

Measure = VAR T1 = ADDCOLUMNS( ADDCOLUMNS( 'Fact Sales', "Country", RELATED( 'Dim Country'[Country] ) ), "MyRank", RANKX( ALL( 'Fact Sales' ), 'Fact Sales'[Sales], , , DENSE ) ) RETURN MINX( T1, [MyRank] )

Regards