Power Query - get data from another column based on date

[powerplatp0]

Hello all, 

I have a business problem that requires a solution similar to (Solved: Power Query - Get data from another table if condi... - Microsoft Fabric Community) question however I haven't been able to implement after working on this all day. 

I have the following aggregated table:

ID	Location	Date	Status
1	Miami	06/01/2024	Complete
2	Miami	02/01/2024	Incomplete
3	Tampa	11/11/2024	Complete
4	Orlando	07/10/2025	TBD
5	Orlando	05/03/2025	Complete
6	Orlando	05/01/2025	Complete
7	Melbourne	09/25/2022	Incomplete

The table is already sorted so that the first entry of row of a common Location is the latest Date. I want create a new column that returns the Status of the most recent Date for every Location. The other Date rows should be null. The result table should look like: 

ID	Location	Date	Status	New
1	Miami	06/01/2024	Complete	Complete
2	Miami	02/01/2024	Incomplete	null
3	Tampa	11/11/2024	Complete	Complete
4	Orlando	07/10/2025	TBD	TBD
5	Orlando	05/03/2025	Complete	null
6	Orlando	05/01/2025	Complete	null
7	Melbourne	09/25/2022	Incomplete	Incomplete

[Anonymous · Accepted solution]

Hi, @powerplatp0 

You can try the following methods.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUfLNTMzNBNJm+ob6RgZGJkCmc35uQU5qSapSrE60khGSGiOEGs+8ZKgqBbAyY6BYSGJuQSKQNjTUN8QwDKIMJOJflJOYl5IPZJnrGxqA1JmCNDu5gFWYoqgw1TeGKUBxlRmaKkOsqsxBbk/NScovLcpLBbIt9Y1MQQqNUDygFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ID = _t, Location = _t, Date = _t, Status = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ID", Int64.Type}, {"Location", type text}, {"Date", type date}, {"Status", type text}}),
    #"Grouped Rows" = Table.Group(#"Changed Type", {"Location"}, {{"Data", each _}}),
    Custom1 = Table.TransformColumns(#"Grouped Rows",{"Data", each Table.FirstN(_,1)}),
    #"Expanded Data" = Table.ExpandTableColumn(Custom1, "Data", {"ID", "Status"}, {"Data.ID", "Data.Status"}),
    #"Merged Queries" = Table.NestedJoin(#"Changed Type", {"ID"}, #"Expanded Data", {"Data.ID"}, "Expanded Data", JoinKind.LeftOuter),
    #"Expanded Expanded Data" = Table.ExpandTableColumn(#"Merged Queries", "Expanded Data", {"Data.Status"}, {"Data.Status"})
in
    #"Expanded Expanded Data"

Is this the result you expected?

Best Regards,

Community Support Team _Charlotte

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Irwan]

hello @powerplatp0 

please check if this accomodate your need.

create new calculated column with following DAX.

New =
var _MaxDate = 
MAXX(
    FILTER(
        'Table',
        'Table'[Location]=EARLIER('Table'[Location])
    ),
    'Table'[Date]
)
Return
IF(
    'Table'[Date]=_MaxDate,
    'Table'[Status],
    "Null"
)

Hope this will help.

Thank you.