Get Min and Max for specific entries in Power Query

[bkr]

Dear community,

I have an employee list that is updated every month. Static stuff (employee ID, Name, Company entry and exit, gender etc.) are stored in a Dimension table and variable stuff (organisational unit,line manager, pay grade) in a fact table.

Now: How can I get entry and exit date into a dimension table with one row for each employee from an Excel table that has one entry per employee and month?

Source:

ID	Employee	Month/year	gender	org. unit	line manager	pay grade
1	John Doe	03-2023	male	…
1	John Doe	04-2023	male
1	John Doe	05-2023	male
1	John Doe	06-2023	male
1	John Doe	07-2023	male
2	Melissa Smith	04-2023	female
2	Melissa Smith	05-2023	female
2	Melissa Smith	06-2023	female
2	Melissa Smith	07-2023	female
2	Melissa Smith	08-2023	female
3	Tim Ding	08-2023	male

Desired Dimension table output:

ID	Employee	Entry	Leave	gender
1	John Doe	03-2023	07-2023	male
2	Melissa Smith	04-2023	08-2023	female
3	Tim Ding	08-2023	08-2023	male

I could get either entry or leave using GroupBy but not both.
I could duplicate the data, do GroupBy in each and then recombine them or put the months in the fact table and evaluate using DAX, but I believe there is a better way to do it in PowerQuery. Any idea?
Thanks!

[Ahmedx · Accepted solution]

try this code

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUfLKz8hTcMlPBTIv7Lmw4WKDnpExkJ2bmJOqFKuDqWbDhf0E1QDNubCTgJodF/su7CVCzW40NUZAjm9qTmZxcaJCcG5mScahBWjOSkslpBjJfYQVIzmUOMW7iVW84cKmC5sxFIO4IZm5Ci6ZeeloqiBqYgE=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [D = _t, #"Employee " = _t, #"Month/year " = _t, #" gender " = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"D", Int64.Type}, {"Employee ", type text}, {"Month/year ", type date}, {" gender ", type text}}),
    #"Grouped Rows" = Table.Group(#"Changed Type", {"D", "Employee ", " gender "}, {{"min", each List.Min([#"Month/year "]), type nullable date}, {"max", each List.Max([#"Month/year "]), type nullable date}})
in
    #"Grouped Rows"

[Ahmedx]

to know how to solve the problem watch my video

https://1drv.ms/v/s!AiUZ0Ws7G26Rinnjq-TEMZIPsnG3?e=ypeziK

[bkr]

I cannot access it unfortunately. Access to onedrives is blocked by my employer