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Anonymous's avatar
Anonymous
Not applicable
7 years ago
Solved

Filtering with many-to-many relationship

Hi!   For the last three days I am trying to do some filtering on many to many related tables. Unfortunately I have not found a solution yet on this forum.  I have thee related tables   Table A >...
Need Help
  • d_gosbell's avatar
    d_gosbell
    7 years ago

    You should be able to do this with your existing tables with a measure like the following:

     

    In Table1 missing in Table2 = 
IF( HASONEVALUE(Table1[OrderID]), 
  Var _table1OrderID = MAX(Table1[OrderID])
  Var _table2RowsWithTable1ID = CALCULATETABLE(Table2, TREATAS({_table1OrderID},Table2[OrderID]))
  Var _countOfMIssingRows = COUNTROWS(_table2RowsWithTable1ID)
  return IF(_countOfMissingRows = 0,"Missing")
)

     

    Returns a result like this

d_gosbell's avatar
d_gosbell
Icon for Super User rankSuper User
7 years ago

No, I don't think DirectQuery would matter. I added a DirectQuery table to my test model and it worked fine. (I just added the text "<Found>" to the else section of the IF statement so that I could see the matched rows)

In SalesOrder1 missing in Internet Sales = 
IF( HASONEVALUE(SalesOrders1[SalesOrderID]), 
  Var _table1OrderID = VALUES(SalesOrders1[SalesOrderID])
  Var _table2RowsWithTable1ID = CALCULATETABLE('FactInternetSales', TREATAS({_table1OrderID},'FactInternetSales'[SalesOrderNumber]))
  Var _countOfMIssingRows = COUNTROWS(_table2RowsWithTable1ID)
  var _result = IF(_countOfMissingRows = 0,"Missing","<Found>")
  return _result
)

Are you sure that the hyphen characters are identical between the two data sets and that there is no trailing whitespace or anything like that?

Anonymous's avatar
Anonymous
Not applicable
7 years ago

Thanks for putting some much time and effort into this question. I still have the same problem. See attached .gif.

 

  • d_gosbell's avatar
    d_gosbell
    Icon for Super User rankSuper User
    7 years ago

    Is that a test model that you could upload to somewhere? If you have a bi-directional many to many relationship I can't think why table2 filters table1, but not the other way around.

  • Anonymous's avatar
    Anonymous
    Not applicable
    7 years ago

    I copied the values from the tables and found out the directquery add's two spaces. I transformed the column with trim and it works..

     

    Thanks!

  • d_gosbell's avatar
    d_gosbell
    Icon for Super User rankSuper User
    7 years ago
    Anonymous wrote:

    I copied the values from the tables and found out the directquery add's two spaces. I transformed the column with trim and it works..

     

    So technically I think you'll find that the extra spaces are in the source tables, not added by DirectQuery, but I understand what the issue is and I'm glad you found the solution. :)