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Anonymous's avatar
Anonymous
Not applicable
4 years ago
Solved

Convert SQL to DAX : Subquery

Hi All, I am trying to convert the following SQL Code to DAX but i am stuck with implementation of the subquery part.
I am trying to get the Distinct patient count in the selected range also have the appointment booked in the future.
Current Date Range is Dec 1st 2021 to Dec 31st 2021 


select count(distinct patient_id)
from fact_appointment
where appointment_date > '2021-12-31'
and patient_id in
(
select distinct patient_id
from fact_appointment_detail
where appointment_date between '2021-12-01' and '2021-12-31'
)

Any help will good.

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  • v-kkf-msft's avatar
    v-kkf-msft
    4 years ago

    Hi Anonymous ,

     

    I create the following sample data.

     

          

     

    Then create the measure:

     

    CountID = 
CALCULATE (
    DISTINCTCOUNT ( fact_appointment[patient_id] ),
    FILTER (
        fact_appointment,
        fact_appointment[appointment_date] > DATE ( 2021, 12, 31 )
            && fact_appointment[product_ID]
                IN { "A123", "B234", "C345" }
                    && fact_appointment[patient_id]
                        IN CALCULATETABLE (
                            VALUES ( fact_appointment_detail[patient_id] ),
                            FILTER (
                                fact_appointment_detail,
                                fact_appointment_detail[product_ID]
                                    IN { "A123", "B234", "C345" }
                                        && fact_appointment_detail[appointment_date] >= DATE ( 2021, 12, 1 )
                                        && fact_appointment_detail[appointment_date] <= DATE ( 2021, 12, 31 )
                            )
                        )
    )
)

     

     

    If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.
    Best Regards,
    Winniz
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

4 Replies

  • DataInsights's avatar
    DataInsights
    Super User
    4 years ago

    Anonymous,

     

    Try this measure:

     

    Patient Count =
CALCULATE (
    DISTINCTCOUNT ( fact_appointment[patient_id] ),
    fact_appointment[appointment_date] > DATE ( 2021, 12, 31 ),
    fact_appointment_detail[appointment_date] >= DATE ( 2021, 12, 1 ),
    fact_appointment_detail[appointment_date] <= DATE ( 2021, 12, 31 )
)

     

    • Anonymous's avatar
      Anonymous
      Not applicable
      4 years ago

      This measure is returning blank , its not working

      Plus i am trying to add another filter in the DAX
      SQL:
      select count(distinct patient_id)
      from fact_appointment
      where appointment_date > '2021-12-31' and product_ID in {'A123','B234','C345'}
      and patient_id in
      (
      select distinct patient_id
      from fact_appointment_detail
      where appointment_date between '2021-12-01' and '2021-12-31' and
      product_ID in {'A123','B234','C345'}
      )
      DAX tried for this logic :
      CALCULATE(DISTINCTCOUNT(fact_appointment[patient_id]),
      Filter(ALL(fact_appointment),(
      fact_appointment[appointment_date] > MAX(fact_appointment[appointment_date]) && (
      fact_appointment[procedure_code] in {"A","C","D"}))),
      fact_appointment[office_patient_id] in
      (DISTINCT(fact_appointment[office_patient_id])))
      but it should add filter condition of product id in the "IN" statement, i am unable to get it .
      dax should be like 
      CALCULATE(DISTINCTCOUNT(fact_appointment[patient_id]),
      Filter(ALL(fact_appointment),(
      fact_appointment[appointment_date] > MAX(fact_appointment[appointment_date]) && (
      fact_appointment[product_ID] in {"A123","C234","D345"}))),
      fact_appointment[office_patient_id] in
      (DISTINCT(fact_appointment[office_patient_id]),
      fact_appointment[product_ID] in {"A123","C234","D345"}))

      • v-kkf-msft's avatar
        v-kkf-msft
        Community Support
        4 years ago

        Hi Anonymous ,

         

        I create the following sample data.

         

              

         

        Then create the measure:

         

        CountID = 
CALCULATE (
    DISTINCTCOUNT ( fact_appointment[patient_id] ),
    FILTER (
        fact_appointment,
        fact_appointment[appointment_date] > DATE ( 2021, 12, 31 )
            && fact_appointment[product_ID]
                IN { "A123", "B234", "C345" }
                    && fact_appointment[patient_id]
                        IN CALCULATETABLE (
                            VALUES ( fact_appointment_detail[patient_id] ),
                            FILTER (
                                fact_appointment_detail,
                                fact_appointment_detail[product_ID]
                                    IN { "A123", "B234", "C345" }
                                        && fact_appointment_detail[appointment_date] >= DATE ( 2021, 12, 1 )
                                        && fact_appointment_detail[appointment_date] <= DATE ( 2021, 12, 31 )
                            )
                        )
    )
)

         

         

        If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.
        Best Regards,
        Winniz
        If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

  • Anonymous's avatar
    Anonymous
    Not applicable
    4 years ago

    Hi v-kkf-msft 

     

    Thanks very much , This approach worked for me.