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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"

     

     

shafiz_p's avatar
shafiz_p
Icon for Super User rankSuper User
2 years ago

Hi Alfinthehouse  Assuming pattern A,B,C repeats every 3 row. To acheive the desired result, Fisrt merged both table and expand budget column. Then you need to create a index column start from 0 and create a custom column with mudulo divided by 3. Then you can create final budget column with condition, if 0 then budget else null. See the below code:

 



let
Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"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"}),
#"Added Index" = Table.AddIndexColumn(#"Expanded Table2", "Index", 1, 1, Int64.Type),
#"Inserted Modulo" = Table.AddColumn(#"Added Index", "Modulo", each Number.Mod([Index], 3), type number),
#"Added Custom" = Table.AddColumn(#"Inserted Modulo", "Custom", each if [Modulo] = 1 then [Budget] else null),
#"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Budget", "Index", "Modulo"}),
#"Renamed Columns" = Table.RenameColumns(#"Removed Columns",{{"Custom", "Budget"}}),
#"Changed Type1" = Table.TransformColumnTypes(#"Renamed Columns",{{"Budget", Int64.Type}})
in
#"Changed Type1"


Desire output:

 

Hope this helps!!
If this solved your problem, please accept it as a solution!!

 

Best Regards,
Shahariar Hafiz



Alfinthehouse's avatar
Alfinthehouse
Regular Visitor
2 years ago

Thanks for the response Shafiz, unfortunately the real data is more complex and each project could have 1,000's of rows associated with it. And it wouldn't be a fixed number per project either