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Anonymous's avatar
Anonymous
Not applicable
6 years ago
Solved

Group Table by Columns creating list for the none grouped column

Looking for some inspiration please.

 

Within a Dataflow Query I want to group by NAME & Type and for the DATE column replace this with a list which in this example would hold two dates.

 

What I am trying to do is find where there are records missing (by Date)  so I want to use the List.Differance to find these against a list of know dates so looking for a way to make the list for each distinct Name & Type combination. 

 

NameTypeDATE
A101/01/2020
A108/01/2020
A201/01/2020
A208/01/2020
B101/01/2020

 

 

NAMETypeDate
A1list (01/01/2020, 08/01/2020)
A2list (01/01/2020, 08/01/2020)
B1list (01/01/2020)

 

Thanks in advance.

Need Help
  • Anonymous's avatar
    Anonymous
    6 years ago

    OK -- figured it out

     

        #"FTG Step 2: List Dates" = Table.Group(#"FTG Step 2: Make table unique",{"Name", "Type", },{"ActualDates" , each [#"Report Date - TEXT"] ,type list})

     

    This gives you a list in each row.

     

    Note: It needs to be a Text value so you can expand it later

3 Replies

  • Anonymous's avatar
    Anonymous
    Not applicable
    6 years ago

    OK -- figured it out

     

        #"FTG Step 2: List Dates" = Table.Group(#"FTG Step 2: Make table unique",{"Name", "Type", },{"ActualDates" , each [#"Report Date - TEXT"] ,type list})

     

    This gives you a list in each row.

     

    Note: It needs to be a Text value so you can expand it later

    • Anonymous's avatar
      Anonymous
      Not applicable
      6 years ago

      Hi,

       

      No concatenatex works across a row what I am looking to do is group a number of rows together like you would with Group By but instead of aggregating i want to create a list of these values.

       

      It is also like pivoting but I don't want to create new columns I want a list of these values.

       

      Regards