Get Month Value in new column (another table) where Rank = 1

[ankurshah01]

Hi All, 

I have a table that shows below data. 

Table A

Calmonth	Rank1	Volume
Jan-23	4	40
Feb-23	1	50
Mar-23	2	45
Apr-23	6	34
May-23	9	20
Jun-23	8	25
Jul-23	5	36
Aug-23	7	30
Sep-23	10	10
Oct-23	11	8
Nov-23	3	42

Rank1 is a measure.

Now based on above table, i need to get the Calmonth value where Rank1 = 1 in Table B. 

So in this case i will get Feb 2023. 

I created a new column in Table B & tried using Calculate with max & filter (where rank = 1) but it returns always Nov 2023. 

New Column = CALCULATE(max('Table A'[Calmonth]),FILTER('Table A', 'Table A'[Rank1] = 1))

I tried with different options using Lookup or selectedvalue but not getting required output. 

how to resolve this issue? 

Regards

Ankur

[v-shex-msft · Accepted solution]

Hi @ankurshah01 ,

Current you can't create dynamic calculated column or table based on filter effect, they works on different levels and you can't use the child level to effect its parent.

You can try to use the following measure formula if helps:

formula =
VAR summary =
    SUMMARIZE (
        ALLSELECTED ( Table1 ),
        [Calmonth],
        "Rank", [Rank1],
        "CalMonth",
            CALCULATE (
                SUM ( table2[Volume] ),
                FILTER ( ALLSELECTED ( Table2 ), Table2[Calmonth] = [Calmonth] )
            )
    )
RETURN
    MAXX ( FILTER ( summary, [Rank] = 1 ), [CalMonth] )

Notice: the data level of power bi(from parent to child level)

Database(external) -> query table(query, custom function, query parameters) -> data model table(table, calculate column/table) -> data view with virtual tables(measure, visual, filter, slicer)

Regards,

Xiaoxin Sheng