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dennis_yin's avatar
dennis_yin
Frequent Visitor
7 years ago

Simple SQL to DAX

I need help translating this query to DAX:

 

select sum(true_total) as physician_values, p.physician_id
from orders as o inner join prescriptions as p
on cast(o.purchased_on as date) <= p.script_end and cast(o.purchased_on as date) >= p.script_start and o.client_id = p.client_id
group by p.physician_id;

 

I tried using DirectQuery but I was having trouble slicing the data by date.

Need Help

3 Replies

  • v-jiascu-msft's avatar
    v-jiascu-msft
    Microsoft Employee
    7 years ago

    Hi dennis_yin,

     

    The measure could be like below. If you need a more precise solution, please provide a dummy sample. 

    The o.client_id = p.client_id part will be achieved by the relationship.

    Measure =
CALCULATE (
    SUM ( orders[true_total] ),
    FILTER (
        orders,
        orders[purchased_on] <= MIN ( prescriptions[script_end] )
            && orders[purchased_on] >= MIN ( prescriptions[script_start] )
    )
)

    Best Regards,

    Dale

    • dennis_yin's avatar
      dennis_yin
      Frequent Visitor
      7 years ago

      Thanks for the reply Dale, but I realize now that I didn't properly explain what I'm trying to do. I need the sum of orders[true_total] for each unique physician, and I need to be able to filter valid prescriptions by a given date. So then if a user chooses September 1 with the date slicer, the true_total value for each physician only reflects prescriptions with a start date <= September 1, and an expiry date >= September 1.