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Frequent Visitor
Posts: 4
Registered: ‎03-21-2018
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DINSTINCT COUNT OF VALUES IN ONE TABLE BASED ON VALUES IN ANOTHER COLUMN

I would like to do a distinct count of values on one table based on fields defined in another table, i am able to achieve this easily using SQL statements but i am unable to convert it into DAX as is used on power BI measures. Here is the SQL that i would use to count;

SELECT COUNT (DISTINCT F.TAXPAYER_ID) 
FROM DIM_TAXPAYER D, FACT_REGISTRATION F 
WHERE D.TAXPAYER_ID = F.TAXPAYER_ID 
AND D.IS_MIGRATED = 'Y' 
AND D.IPAGE_PROCESSED = 'Y' 
OR D.IS_MIGRATED = 'N';

Basically i want to count distinct taxpayer id's in the Fact_registration table that meet the criteria specified from the DIM_TAXPAYER table How can i convert this into a DAX expression?


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Community Support Team
Posts: 2,914
Registered: ‎02-06-2018

Re: DINSTINCT COUNT OF VALUES IN ONE TABLE BASED ON VALUES IN ANOTHER COLUMN

[ Edited ]

Hi @Kevin_Gitonga,

 

Assuming that you have two tables like below and there is a relationship between the two tables.

 

tables.png

 

Then you could create the measure refer to the formula below.

 

distinct_cout =
CALCULATE (
    DISTINCTCOUNT ( 'Table F'[ID] ),
    FILTER (
        'Table D',
        'Table D'[ID] = RELATED ( 'Table F'[ID] )
            && 'Table D'[IS_MIGRATED] = "Y"
            && 'Table D'[IPAGE_PROCESSED] = "Y"
    )
)

Here is the output.

 

output.PNG

 

In Power BI, "&&"means ''And'' and "||" means "OR". You also could use AND and OR functions in dax.

 

If you still need help, please share some data sample and your desired output so that we could help further on it.

 

Best  Regards,

Cherry

Community Support Team _ Cherry Gao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post


All Replies
Established Member
Posts: 201
Registered: ‎07-12-2017

Re: DINSTINCT COUNT OF VALUES IN ONE TABLE BASED ON VALUES IN ANOTHER COLUMN

[ Edited ]

Hi @Kevin_Gitonga

 

 

If you share some sample data that will help reaching the solution

 

Regards 

Affan

Highlighted
Community Support Team
Posts: 2,914
Registered: ‎02-06-2018

Re: DINSTINCT COUNT OF VALUES IN ONE TABLE BASED ON VALUES IN ANOTHER COLUMN

[ Edited ]

Hi @Kevin_Gitonga,

 

Assuming that you have two tables like below and there is a relationship between the two tables.

 

tables.png

 

Then you could create the measure refer to the formula below.

 

distinct_cout =
CALCULATE (
    DISTINCTCOUNT ( 'Table F'[ID] ),
    FILTER (
        'Table D',
        'Table D'[ID] = RELATED ( 'Table F'[ID] )
            && 'Table D'[IS_MIGRATED] = "Y"
            && 'Table D'[IPAGE_PROCESSED] = "Y"
    )
)

Here is the output.

 

output.PNG

 

In Power BI, "&&"means ''And'' and "||" means "OR". You also could use AND and OR functions in dax.

 

If you still need help, please share some data sample and your desired output so that we could help further on it.

 

Best  Regards,

Cherry

Community Support Team _ Cherry Gao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.