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Iyke4joe's avatar
Iyke4joe
Frequent Visitor
6 years ago

DAX Help

Please I need help converting the SQL Code below to Power BI DAX. a and b aliases are for different tables respectively. Thank you.

 

(((COUNT(a.[Case ID])*365/MAX(b.[Days in Month])))/(MAX(b.Membership)/1000))
/
CASE WHEN Month(GetDate())=1 THEN 12
ELSE Month(DateAdd(mm, -1, Getdate()))
  END AS [Admits/K]
,(SUM(a.SaleDays)*365/MAX(b.[Days in Month]))/(MAX(b.Membership/1000))
/
CASE WHEN Month(GetDate())=1 THEN 12
ELSE Month(DateAdd(mm, -1, Getdate()))
  END AS [Days/K]

5 Replies

  • Greg_Deckler's avatar
    Greg_Deckler
    Community Champion

    Iyke4joe - Honestly, this is generally not the best way to go about this. It's far easier to start with source data example, expected output instead of trying to parse SQL code. That said, equivalent of CASE statement is SWITCH.

     

    Not really enough information to go on, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

    Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

    The most important parts are:
    1. Sample data as text, use the table tool in the editing bar
    2. Expected output from sample data
    3. Explanation in words of how to get from 1. to 2.

  • Iyke4joe's avatar
    Iyke4joe
    Frequent Visitor

    Greg_Deckler 

    Hi Greg, thank you for your response. For the sake of security, I can't give the exact data but here's a typical representation of it.

    Thank you in anticipation of your response.

     

    Table A

    CaseID

    MemberID

    SaleDays

    Date

    234

    cc1

    4

    3/6/2019

    456

    cc2

    3

    4/12/2019

    789

    cc3

    9

    5/19/2019

        

     

    Table B

    Member_id

    Membership

    Year

    Month

    Days in Month

    cc1

    2

    2019

    3

    3

    cc2

    3

    2019

    4

    30

    cc3

    5

    2019

    5

    31

    cc4

    9

    2019

    7

    31

    cc5

    7

    2019

    8

    31

         
    • Greg_Deckler's avatar
      Greg_Deckler
      Community Champion

      Iyke4joe - Yep, understood, sample data is great. And what is the expected output from the sample data you provided? Once I understand that, should be able to mock this up in a PBIX for you.

      • Iyke4joe's avatar
        Iyke4joe
        Frequent Visitor

        Greg_Deckler 

         

        Here's the explanation I got for the code. Will this help?

         

        MetricMembershipDays in YearDays in MonthFormulaCommentSolution/ K
        3151282136531 =(A2*C2/D2)/(B2/1000)(metric * Days in Year/Days in Month)/(Membership/1000)  ; Goes down to days and helps in Feb since it has fewer days   289.28
    • Iyke4joe's avatar
      Iyke4joe
      Frequent Visitor

      Greg_Deckler 

      Hey Greg, thanks for your response and I apologize for just getting back to you on this.

      I have asked and could not get any right explanation for the logic behind the SQL code. I am just responsible to create report and dashboard on power BI using the Code provided by the DBA team. I ahve played with this in different ways to avoid using the end column but still end up needing to use it. If there's anyway you can help, I will appreciate this. I don't know if they are doing it per every 1000 membership( just a hunch). Pls help as this is the only thing holding me back from moving forward.

       

      Thank you