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ilamoureuse
Regular Visitor

Min and max date rows for item in each category

Hello.

I've been trying to solve this for weeks now so I'm asking for some help!

Basically, I have a list of items that can be in several sprints and for each sprint they are in I want to keep the record of the first date IN THE SPRINT and the last date IN THE SPRINT. I tried this in PowerQuery but it gives me the min date accross all sprints, not by sprint :

 

= Table.Group(#"Source", {"Work Item Id", "Iteration Path"}, {{"DateMin", each Table.Min(_, "Date")}})

 

 

Here is my sample data :

 

SAMPLE DATA
Item IDIteration pathStateDate
100Sprint 1Open1/1/2023
100Sprint 1Open2/1/2023
100Sprint 1Open3/1/2023
100Sprint 1Closed4/1/2023
100Sprint 2Closed5/1/2023
100Sprint 2Closed6/1/2023
200Sprint 1Open3/1/2023
200Sprint 1Closed4/1/2023

 

And the result I'm trying to get using power query :

EXPECTED RESULT     
Item IDIteration pathStateDate Comment (not needed in result)
100Sprint 1Open1/1/2023 Min date in sprint 1 for item 100
100Sprint 1Closed4/1/2023 Max date in sprint 1 for item 100
100Sprint 2Closed5/1/2023 Min date in sprint 2 for item 100
100Sprint 2Closed6/1/2023 Max date in sprint 2 for item 100
200Sprint 1Open3/1/2023 Min date in sprint 1 for item 200
200Sprint 1Closed4/1/2023 Max date in sprint 1 for item 200

 

I don't see how I can upload my sample data file but I copied/pasted the tables above.

Thanks in advance for your help !

1 ACCEPTED SOLUTION
m_dekorte
Super User
Super User

Hi @ilamoureuse,

 

You must have been so close, you were on the right track...

Here's a fully user interface driven solution.

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQwUNJRCi4oyswrUTAEMv0LUvOAlIGhLhAZGSvF6uBRZESMImN8ipxz8otTU0DKTHApM0JRZkqcMjMkZUbEuAxDERaXxQIA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Item ID" = _t, #"Iteration path" = _t, State = _t, Date = _t]),
    ChType = Table.TransformColumnTypes(Source,{{"Date", type date}}),
    GroupRows = Table.Group(ChType, {"Item ID", "Iteration path"}, {{"Min Date", each List.Min([Date]), type nullable date}, {"Max Date", each List.Max([Date]), type nullable date}}),
    UnpivotOthers = Table.UnpivotOtherColumns(GroupRows, {"Item ID", "Iteration path"}, "Attribute", "Value"),
    SelfMerge = Table.NestedJoin(UnpivotOthers, {"Item ID", "Iteration path", "Value"}, ChType, {"Item ID", "Iteration path", "Date"}, "UnpivotOthers", JoinKind.LeftOuter),
    GetState = Table.ExpandTableColumn(SelfMerge, "UnpivotOthers", {"State"}, {"State"})
in
    GetState

 

 

The Group by returns this

m_dekorte_0-1682699623912.png

 

Selecting both columns "Item ID" and "Iteration path" and unpivoting others

Note you can rename both new "Attribute" and "Value" columns here directly inside the formula bar

m_dekorte_1-1682699655578.png

 

And finally do a self merge to get the State

m_dekorte_2-1682700154300.png

 

Ps. If this helps solve your query please mark this post as Solution, thanks!

View solution in original post

3 REPLIES 3
ilamoureuse
Regular Visitor

Thank you so much @m_dekorte !

ThxAlot
Super User
Super User

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQwUNJRCi4oyswrUTAEMv0LUvOAlKG+gaG+kYGRsVKsDm5VRkSpMsavyjknvzg1Bcgwwa3OCFmdKZHqzFDUGRHlOgxV2FwXCwA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Item ID" = _t, #"Iteration path" = _t, State = _t, Date = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Item ID", Int64.Type}, {"Iteration path", type text}, {"State", type text}, {"Date", type date}}),
    Grouped = Table.Group(#"Changed Type", {"Item ID","Iteration path"}, {"Grp", each Table.FromRecords({Table.First(_), Table.Last(_)})}, 0),
    #"Expanded Grp" = Table.ExpandTableColumn(Grouped, "Grp", {"State", "Date"}, {"State", "Date"})
in
    #"Expanded Grp"

ThxAlot_0-1682704333569.png



Expertise = List.Accumulate(


        {Days as from Today},


        {Skills and Knowledge},


        (Current, Everyday) => Current & Day.LeanAndPractise(Everyday)


)



m_dekorte
Super User
Super User

Hi @ilamoureuse,

 

You must have been so close, you were on the right track...

Here's a fully user interface driven solution.

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQwUNJRCi4oyswrUTAEMv0LUvOAlIGhLhAZGSvF6uBRZESMImN8ipxz8otTU0DKTHApM0JRZkqcMjMkZUbEuAxDERaXxQIA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Item ID" = _t, #"Iteration path" = _t, State = _t, Date = _t]),
    ChType = Table.TransformColumnTypes(Source,{{"Date", type date}}),
    GroupRows = Table.Group(ChType, {"Item ID", "Iteration path"}, {{"Min Date", each List.Min([Date]), type nullable date}, {"Max Date", each List.Max([Date]), type nullable date}}),
    UnpivotOthers = Table.UnpivotOtherColumns(GroupRows, {"Item ID", "Iteration path"}, "Attribute", "Value"),
    SelfMerge = Table.NestedJoin(UnpivotOthers, {"Item ID", "Iteration path", "Value"}, ChType, {"Item ID", "Iteration path", "Date"}, "UnpivotOthers", JoinKind.LeftOuter),
    GetState = Table.ExpandTableColumn(SelfMerge, "UnpivotOthers", {"State"}, {"State"})
in
    GetState

 

 

The Group by returns this

m_dekorte_0-1682699623912.png

 

Selecting both columns "Item ID" and "Iteration path" and unpivoting others

Note you can rename both new "Attribute" and "Value" columns here directly inside the formula bar

m_dekorte_1-1682699655578.png

 

And finally do a self merge to get the State

m_dekorte_2-1682700154300.png

 

Ps. If this helps solve your query please mark this post as Solution, thanks!

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