Measure for query using IN statement

[Anonymous]

Hello, I need to write a measure to do the following query. 

SELECT count(*)
FROM table 1 a
WHERE a.code IN
(select b.code from table 2 b where b.id = selectedvalue(table3[id])

Appreciate any help/suggestions, Thank you!

[aduguid]

Try this measure out 

SelectedCount = 
VAR SelectedID = SELECTEDVALUE(Table3[id])
VAR FilteredCodes = 
    CALCULATETABLE(
        VALUES(Table2[code]),
        Table2[id] = SelectedID
    )
RETURN
    CALCULATE(
        COUNTROWS(Table1),
        Table1[code] IN FilteredCodes
    )

[Anonymous]

Thanks for a quick respond! When tried your solution it took loong time and got a message "Couldn't load the data for this visual". Table1 has more than 10 mln records and I have filters for visuals on the page. May be I need to add filters to the measure also? If you can add to your solution for table1 source_id = 1 and service_id = 2 ? Many thanks! 

[aduguid]

I tried to refactor the DAX 

SelectedCount = 
VAR SelectedID = SELECTEDVALUE(Table3[id])
RETURN
    CALCULATE(
        COUNTROWS(Table1),
        FILTER(
            Table1,
            Table1[code] IN 
            CALCULATETABLE(
                VALUES(Table2[code]),
                Table2[id] = SelectedID
            )
        )
    )

[Anonymous]

Thanks! I tried refactor measure and got nothing unfortunately...

[Anonymous · Accepted solution]

Hi @Anonymous 

Have you solved your problem? If so, can you share your solution here and mark the correct answer as a standard answer to help other members find it faster? Thank you very much for your kind cooperation!

Best Regards

Zhengdong Xu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.