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ChrisBroome's avatar
ChrisBroome
Frequent Visitor
5 years ago
Solved

How to reference and copy data from one row to another

Hi, I'm relatively new to PowerBI and PowerQuery, so apologies if the terminology below is incorrect. I'm trying to do something that I feel 'should' be easy;   I have data set out as follows;   ...
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  • Jimmy801's avatar
    Jimmy801
    5 years ago

    Hello ChrisBroome 

     

    I included now some errorhandling

    let
Source = Csv.Document(File.Contents("C:\Users\Chris.Broome\Downloads\TISReport_15-20201023_130241.csv"),[Delimiter=",", Columns=50, Encoding=65001, QuoteStyle=QuoteStyle.Csv]),
#"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}, {"Column2", type text}, {"Column3", type text}, {"Column4", type text}, {"Column5", type text}, {"Column6", type text}, {"Column7", type text}, {"Column8", type text}, {"Column9", type text}, {"Column10", type text}, {"Column11", type text}, {"Column12", type text}, {"Column13", type text}, {"Column14", type text}, {"Column15", type text}, {"Column16", type text}, {"Column17", type text}, {"Column18", type text}, {"Column19", type text}, {"Column20", type text}, {"Column21", type text}, {"Column22", type text}, {"Column23", type text}, {"Column24", type text}, {"Column25", type text}, {"Column26", type text}, {"Column27", type text}, {"Column28", type text}, {"Column29", type text}, {"Column30", type text}, {"Column31", type text}, {"Column32", type text}, {"Column33", type text}, {"Column34", type text}, {"Column35", type text}, {"Column36", type text}, {"Column37", type text}, {"Column38", type text}, {"Column39", type text}, {"Column40", type text}, {"Column41", type text}, {"Column42", type text}, {"Column43", type text}, {"Column44", type text}, {"Column45", type text}, {"Column46", type text}, {"Column47", type text}, {"Column48", type text}, {"Column49", type text}, {"Column50", type text}}),
#"Renamed Columns" = Table.RenameColumns(#"Changed Type",{{"Column1", "ID"}, {"Column2", "Title"}, {"Column3", "Link ID"}}),
#"PreviousStep" = Table.TransformColumnTypes(#"Renamed Columns",{{"ID", Int64.Type}, {"Title", type text}, {"Link ID", Int64.Type}}),
AddColumn = Table.AddColumn
(
PreviousStep,
"Link Title",
each try Table.SelectRows(PreviousStep, (sel)=> sel[ID]=_[Link ID])[Title]{0} otherwise null
)
in
AddColumn

     

    Copy paste this code to the advanced editor in a new blank query to see how the solution works.

    If this post helps or solves your problem, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
    Kudoes are nice too

    Have fun

    Jimmy

CNENFRNL's avatar
CNENFRNL
Community Champion
5 years ago

One more solution, have fun

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQyVtJRciwoyEkF0oZGpkqxOtFgWkfJKTEPCIEMqJg5kOlflJiXngoWiwUA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ID = _t, Title = _t, #"Link ID" = _t]),

    #"Added Custom" = Table.AddColumn(Source, "Custom", each try Record.Field(Source{[ID=[Link ID]]}, "Title") otherwise null)
in
    #"Added Custom"