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Alex_nor's avatar
Alex_nor
Frequent Visitor
3 years ago
Solved

Group by date range - Powe query

Hello all,

I have two columns: TimeStamp and LoadDate. 

I would like to create a third column, LoadID based on this criteria:

Dates between 23-06-2022 and 04-07-2022 in TimeStamp should have LoadID = 05-07-2022,

dates between 05-07-2022 and 27-07-2022 in TimeStamp should have LoadID = 28-07-2022, and so on.

Do you have any suggestion?

 

 

  • Hi, Alex_nor ;

    See the working here - Open a blank query - Home - Advanced Editor - Remove everything from there and paste the below code to test.

    let
        Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("ZdJLDoAgEATRu7A2wenh51kM97+GiRoIxY5qXbyI9x1KlEedUjhC6Mc7JA6ZQ+FQOTQOFwY/l6FGQwvt6IQeyHH89oL3KrqhL7o2KKVGqtFqxFrmQKbRaYQapaJU2zelVJSKUlEqSkXpvPx5/p+QvP0FvpJbZAvt6ITO6IKu6IYe4nHs/QE=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Timestamp = _t, LoadDate = _t]),
        #"Changed Type" = Table.TransformColumnTypes(Source,{{"Timestamp", type date}, {"LoadDate", type date}}),
        #"Sorted Rows" = Table.Sort(#"Changed Type",{{"Timestamp", Order.Ascending}}),
        #"Added Custom" = Table.AddColumn(#"Sorted Rows", "Custom", each [LoadDate]),
        #"Filled Up" = Table.FillUp(#"Added Custom",{"Custom"}),
        #"Added Conditional Column" = Table.AddColumn(#"Filled Up", "Load Id", each if [Timestamp] = [Custom] then null else [Custom]),
        #"Filled Up1" = Table.FillUp(#"Added Conditional Column",{"Load Id"}),
        #"Removed Columns" = Table.RemoveColumns(#"Filled Up1",{"Custom"})
    in
        #"Removed Columns"

    The final show:


    Best Regards,
    Community Support Team _ Yalan Wu
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

2 Replies

  • v-yalanwu-msft's avatar
    v-yalanwu-msft
    Community Support

    Hi, Alex_nor ;

    See the working here - Open a blank query - Home - Advanced Editor - Remove everything from there and paste the below code to test.

    let
        Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("ZdJLDoAgEATRu7A2wenh51kM97+GiRoIxY5qXbyI9x1KlEedUjhC6Mc7JA6ZQ+FQOTQOFwY/l6FGQwvt6IQeyHH89oL3KrqhL7o2KKVGqtFqxFrmQKbRaYQapaJU2zelVJSKUlEqSkXpvPx5/p+QvP0FvpJbZAvt6ITO6IKu6IYe4nHs/QE=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Timestamp = _t, LoadDate = _t]),
        #"Changed Type" = Table.TransformColumnTypes(Source,{{"Timestamp", type date}, {"LoadDate", type date}}),
        #"Sorted Rows" = Table.Sort(#"Changed Type",{{"Timestamp", Order.Ascending}}),
        #"Added Custom" = Table.AddColumn(#"Sorted Rows", "Custom", each [LoadDate]),
        #"Filled Up" = Table.FillUp(#"Added Custom",{"Custom"}),
        #"Added Conditional Column" = Table.AddColumn(#"Filled Up", "Load Id", each if [Timestamp] = [Custom] then null else [Custom]),
        #"Filled Up1" = Table.FillUp(#"Added Conditional Column",{"Load Id"}),
        #"Removed Columns" = Table.RemoveColumns(#"Filled Up1",{"Custom"})
    in
        #"Removed Columns"

    The final show:


    Best Regards,
    Community Support Team _ Yalan Wu
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

  • Hi Alex_nor 

     

    Try this M code  : Download sample file

     

    let
        Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
        #"Changed Type" = Table.TransformColumnTypes(Source,{{"TimeStamp", type date}, {"LoadDate", type date}}),
        #"Added Custom" = Table.AddColumn(#"Changed Type", "LoadID", each if [TimeStamp] <= #date(2022,7,4) then #date(2022,7,5)
    
    else if [TimeStamp] <= #date(2022,7,27) then #date(2022,7,28)
    
    else null)
    in
        #"Added Custom"

     

     

    Which gives this

     

    In my data the date columns are actually dates, in your data they look to be text.

     

    Regards

     

    Phil