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Alfinthehouse's avatar
Alfinthehouse
Regular Visitor
2 years ago
Solved

Merged Query Question

Hi   I am trying to merge 2 tables, but in a way that it only matches once for each project. The tables below should explain what I'm after better Table 1: Project Item Cost Project 1 A ...
Need Help
  • ronrsnfld's avatar
    ronrsnfld
    2 years ago

    Different Approach:

    let
    Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    Table1 = Table.TransformColumnTypes(Source,{{"Project", type text}, {"Item", type text}, {"Cost", Int64.Type}}),
    Source2 = Excel.CurrentWorkbook(){[Name="Table2"]}[Content],
    Table2 = Table.TransformColumnTypes(Source2,{{"Project", type text}, {"Budget", Int64.Type}}),
    Merge = Table.NestedJoin(Table1,"Project",Table2,"Project","Merged"),
    #"Expanded Merged" = Table.ExpandTableColumn(Merge, "Merged", {"Budget"}, {"Budget"}),
    #"Grouped Rows" = Table.Group(#"Expanded Merged", {"Project"}, {
        {"all", (t)=>Table.FromColumns(
                    Table.ToColumns(Table.RemoveColumns(t,"Budget"))
                    & {{t[Budget]{0}} & List.Repeat({null}, Table.RowCount(t)-1)},
                    {"Project","Item","Cost","Budget"}), 
        
        type table [Project=nullable text, Item=nullable text, Cost=nullable number, Budget=nullable number]}}),
    #"Expanded all" = Table.ExpandTableColumn(#"Grouped Rows", "all", {"Item", "Cost", "Budget"})
in
    #"Expanded all"

     

     

Chewdata's avatar
Chewdata
Icon for Responsive Resident rankResponsive Resident
2 years ago

Hello,

Can you share your merge code, because a simple left-outer join should do the trick.

 

 

 

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WCijKz0pNLlEwVNJRcgRiQwOlWB1UYSfsws6YwkbYDTHCbogRdkOMsRtijN0QYyRDYgE=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Project = _t, Item = _t, Cost = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Project", type text}, {"Item", type text}, {"Cost", Int64.Type}}),
    #"Merged Queries" = Table.NestedJoin(#"Changed Type", {"Project"}, Table2, {"Project"}, "Table2", JoinKind.LeftOuter),
    #"Expanded Table2" = Table.ExpandTableColumn(#"Merged Queries", "Table2", {"Budget"}, {"Budget"})
in
    #"Expanded Table2"