Count column value based on multiple criteria in another table

[ClemFandango]

Hi all,

I am hoping someone can help. I am trying to count the number of 'ID' in table 1 where the 'Date' is >= 'Start' & <= 'End' (from Table 2). I have tried the DAX below, but this appears to just count all rows (instead of ID) found between the 'Start' & 'End' date.

 Count = CALCULATE (
    DISTINCTCOUNT ( 'Table2'[ID] ),
    FILTER ('Table2',
       [Date] >= 'Table2'[Start Date]
            && [Date] <= 'Table2'[End Date]
              && Table2[ID] = [ID]
                       ))

I am attempting to generate the results shown in the 'Count' column below.

Table1

ID	Date	Count
1	04/01/24	2
2	30/01/24	1
3	30/01/24	0
4	10/01/24	1

Table2

ID	Start	End
1	01/01/24	01/01/25
1	05/01/24	05/01/25
1	04/01/24	04/01/24
2	01/01/22	01/01/23
2	12/12/23	05/05/24
3	01/01/20	01/01/21
4	01/01/24	10/01/24

Any help eternally appreciated!

CM

[selimovd · Accepted solution]

Hey @ClemFandango ,

as I understand, you want the result as calculated column, is that right?
Try the following calculated column:

Count = 
VAR _DateCurrentRow = Table1[Date]
VAR _IDCurrentRow = Table1[ID]
VAR _FilterTable2 = FILTER( Table2, [Start] <= _DateCurrentRow && [End] >= _DateCurrentRow && Table2[ID] = _IDCurrentRow)
VAR _Result = COUNTROWS( _FilterTable2 )
RETURN
_Result

If you need any help please let me know.
If I answered your question I would be happy if you could mark my post as a solution ✔️ and give it a thumbs up 👍

Best regards
Denis

Blog: WhatTheFact.bi
Follow me: twitter.com/DenSelimovic

[Anonymous · Accepted solution]

Hi, @ClemFandango 

Maybe you can use the follow DAX :

Count = 
VAR _count=CALCULATE (
    COUNT ( 'Table2'[ID] ),
    FILTER ('Table2',
       RELATED(Table1[Date]) >= 'Table2'[Start]
            && RELATED(Table1[Date]) <= 'Table2'[End]
              && Table2[ID] = [ID]
                       ))
RETURN
IF(_count> 0,
_count,
 0)

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[selimovd · Accepted solution]

Hey @ClemFandango ,

as I understand, you want the result as calculated column, is that right?
Try the following calculated column:

Count = 
VAR _DateCurrentRow = Table1[Date]
VAR _IDCurrentRow = Table1[ID]
VAR _FilterTable2 = FILTER( Table2, [Start] <= _DateCurrentRow && [End] >= _DateCurrentRow && Table2[ID] = _IDCurrentRow)
VAR _Result = COUNTROWS( _FilterTable2 )
RETURN
_Result

If you need any help please let me know.
If I answered your question I would be happy if you could mark my post as a solution ✔️ and give it a thumbs up 👍

Best regards
Denis

Blog: WhatTheFact.bi
Follow me: twitter.com/DenSelimovic

[ClemFandango]

This is amazing - thanks so much