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Anonymous's avatar
Anonymous
Not applicable
8 years ago

Basic Question on DAX Model

I have 2 Tables with Data as follows

TEST1

A     5

B     10

 

TEST2

A    P1

A    P2

A    P3

B    P4

B    P5

 

I pulled all the Columns to a Table on Desktop and got below Results - 

 

A    P1   5

A    P2   5

A    P3   5

B    P4   10

B    P5   10

-------------

             15

 

Total Row being 15 ... What I expected is to join TEST1 table with TEST2 and then sum the Numeric field but instead of the Total being 35 it is still 15. How does the DAX evaluate for this Scenario ???

Need Help

4 Replies

  • Phil_Seamark's avatar
    Phil_Seamark
    Microsoft Employee
    8 years ago

    Hi Anonymous

     

    How have you created the bottom table?  Have you just created a relationship between the two tables?

    • Anonymous's avatar
      Anonymous
      Not applicable
      8 years ago
      Created those Tables manually and a relationship was also established between the first Column of both the tables. Test1 to Test2 ( one to many relationship)
  • Ashish_Mathur's avatar
    Ashish_Mathur
    Super User
    8 years ago

    Hi,

     

    Using the Query Editor, you should first merge both Tables into one (joining based on the first column) and then write a simple measure

     

    =SUM(Merged Table[Amount])

     

    Hope this helps.

    • Anonymous's avatar
      Anonymous
      Not applicable
      8 years ago

      Hi Ashish,

       

      I am just trying to understand how the DAX is computing a Total of 15 instead of 35 when you try to pull all the Columns from both the Tables.

       

      Thanks Ashish & Phil for responding to this Topic. 

       

      Here is what I am visualizing in SQL World - 

      SELECT SUM(TEST1.Column2) FROM (SELECT * FROM TEST1 INNER JOIN TEST2 ON TEST1.Column1 = TEST2.Column1) A

       

      But I think the SUM is still 15.