Forum Discussion

pcav's avatar
pcav
Helper I
7 years ago
Solved

Create column based on MAX date in associated table

I have a  data structure where a row in the Table1 has multiple associated rows in Table2. 


Each row in Table2 has a date and time column.

 

What I want to do is create a date and time column in Table1 with the MAX date and time value for the asssociated rows from Table2

 

 

 

 I have tried LASTDATE but it objects to the dates potentially being the same.

 

Can anybody help as I am struggling with this and have been for ages!!!!

Need Help
  • AlB's avatar
    AlB
    7 years ago

    pcav

    It will work anyway. Although in that case the FILTER( ) is redundant.  

4 Replies

  • AlB's avatar
    AlB
    Community Champion
    7 years ago

    Hi pcav

     

    I understand you want to show in Table1 the latest date that appears in Table2 for that Id? If so you can create your new calculated column in Table1 as follows:

     

    CalculatedDate =
CALCULATE ( MAX ( Table2[Date] ), FILTER ( Table2, Table2[Id] = Table1[Id] ) )

     

    This assumes no relationships between Table1 and Table2

     

    • pcav's avatar
      pcav
      Helper I
      7 years ago

      Thanks but that will not work as there is a relationship between table1 and table2 which is "Id"

      • AlB's avatar
        AlB
        Community Champion
        7 years ago

        pcav

        It will work anyway. Although in that case the FILTER( ) is redundant.