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PowerQPro's avatar
PowerQPro
Frequent Visitor
6 years ago
Solved

Replace Value using a value in different column in PowerQ

Hi

 

I am trying to reduced the number of line items in my Query.

 

This section works perfectly, but I think I should be able to reduce these steps to one using else if. Tried various codes and seems like some kind or other error. Any help would be much apprecated. 

 

#"Replaced Value" = Table.ReplaceValue(#"Replaced Value10",each [_3],each if [Object] <> "" then [_3] else "----", Replacer.ReplaceValue,{"_3","_4","_5","_6","_7","_8","_9","_10","_11"}),
#"Replaced Value7" = Table.ReplaceValue(#"Replaced Value",each [_4],each if [_3] = "" then [_4] else "----", Replacer.ReplaceValue,{"_4","_5","_6","_7","_8","_9","_10","_11"}),
#"Replaced Value6" = Table.ReplaceValue(#"Replaced Value7",each [_5],each if [_4] = "" then [_5] else "----", Replacer.ReplaceValue,{"_5","_6","_7","_8","_9","_10","_11"}),
#"Replaced Value5" = Table.ReplaceValue(#"Replaced Value6",each [_6],each if [_5] = "" then [_6] else "----", Replacer.ReplaceValue,{"_6","_7","_8","_9","_10","_11"}),
#"Replaced Value4" = Table.ReplaceValue(#"Replaced Value5",each [_8],each if [_6] = "" then [_8] else "----", Replacer.ReplaceValue,{"_7","_8","_9","_10","_11"}),
#"Replaced Value3" = Table.ReplaceValue(#"Replaced Value4",each [_9],each if [_8] = "" then [_9] else "----", Replacer.ReplaceValue,{"_9","_10","_11"}),
#"Replaced Value2" = Table.ReplaceValue(#"Replaced Value3",each [_10],each if [_9] = "" then [_10] else "----", Replacer.ReplaceValue,{"_10","_11"}),

Need Help
  • Jimmy801's avatar
    Jimmy801
    6 years ago

    Hello PowerQPro 

     

    your code should look something like this. I just replaced my datasoure with your steps till the transformation. 

    let
let
    FullPathToFile2 = Excel.CurrentWorkbook(){[Name="FilePath2"]}[Content]{0}[Column1],
    Source = Csv.Document(File.Contents(FullPathToFile2),[Delimiter="#(tab)", Columns=29, Encoding=65001, QuoteStyle=QuoteStyle.None]),
    #"Removed Top Rows" = Table.Skip(Source,13),
    #"Promoted Headers" = Table.PromoteHeaders(#"Removed Top Rows", [PromoteAllScalars=true]),
    #"Removed Top Rows1" = Table.Skip(#"Promoted Headers",2),
	TransformRows = Table.FromRecords(Table.TransformRows
	(
		#"Removed Top Rows1",
		(row)=> 
		let 
			check3Fill4 = if row[_3]<> "" then Record.TransformFields(row, {"_4", each  "----"}) else row,
			check4Fill4 = if check3Fill4[_4]<> "" then Record.TransformFields(check3Fill4, {"_5", each  "----"}) else check3Fill4
		in 
			check4Fill4

	))
in
	TransformRows

    you have to update this part according you needs. These two lines should show how to get there


    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

     

4 Replies

  • dax's avatar
    dax
    Community Support
    6 years ago

    Hi PowerQPro , 

    It seems that you want to simplify this in one step, right? But in your scenario, these steps will refer  to previous step, so I think it is hard to complete it in a simple step.

    Or you also could @ super users in this forum for more suggestions.

    Best Regards,
    Zoe Zhi

    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

  • Jimmy801's avatar
    Jimmy801
    Community Champion
    6 years ago

    Hello PowerQPro 

     

    i don't think that applying your logic there is a way to do that in one step with Table.ReplaceValue, because your are referencing in one step a column, that was changed in the previous step. But if you would do with Table.TransformRows it could work.

    Here an code example how this could look like. This is much more readable and logic to maintain

    let
	Source = #table
	(
		{"_3","_4","_5","_6","_7","_8","_9","_10","_11"},
		{
			{"x","","asdf","sadf","1333,33","","asfd","",""},	{"x","","sadf","","sadf","","","sadf",""}
		}
	),
	TransformRows = Table.FromRecords(Table.TransformRows
	(
		Source,
		(row)=> 
		let 
			check3Fill4 = if row[_3]<> "" then Record.TransformFields(row, {"_4", each  "----"}) else row,
			check4Fill4 = if check3Fill4[_4]<> "" then Record.TransformFields(check3Fill4, {"_5", each  "----"}) else check3Fill4
		in 
			check4Fill4

	))
in
	TransformRows

     

    Copy paste this code to the advanced editor in a new blank query to see how the solution works. If this solution fits your need, copy and past a part of it and implement it in your query

    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

     

    • PowerQPro's avatar
      PowerQPro
      Frequent Visitor
      6 years ago

      Hi Jimmy

       

      I am not an expert user to identify all the steps you created, but once embeded to the code, it is not giving any Syntax erro, but running creates an error. full code below. Please note that there are lot of columns in the table I did not mention but only need to change the onces I mentioned.

       

      let
          FullPathToFile2 = Excel.CurrentWorkbook(){[Name="FilePath2"]}[Content]{0}[Column1],
          Source = Csv.Document(File.Contents(FullPathToFile2),[Delimiter="#(tab)", Columns=29, Encoding=65001, QuoteStyle=QuoteStyle.None]),
          #"Removed Top Rows" = Table.Skip(Source,13),
          #"Promoted Headers" = Table.PromoteHeaders(#"Removed Top Rows", [PromoteAllScalars=true]),
          #"Removed Top Rows1" = Table.Skip(#"Promoted Headers",2),

       TransformRows = Table.FromRecords(Table.TransformRows
       (
        Source,
        (row)=>
        let
         check3Fill4 = if row[_3]<> "" then Record.TransformFields(row, {"_4", each  "----"}) else row,
         check4Fill4 = if check3Fill4[_4]<> "" then Record.TransformFields(check3Fill4, {"_5", each  "----"}) else check3Fill4
        in
         check4Fill4

       ))
      in
       TransformRows

      • Jimmy801's avatar
        Jimmy801
        Community Champion
        6 years ago

        Hello PowerQPro 

         

        your code should look something like this. I just replaced my datasoure with your steps till the transformation. 

        let
let
    FullPathToFile2 = Excel.CurrentWorkbook(){[Name="FilePath2"]}[Content]{0}[Column1],
    Source = Csv.Document(File.Contents(FullPathToFile2),[Delimiter="#(tab)", Columns=29, Encoding=65001, QuoteStyle=QuoteStyle.None]),
    #"Removed Top Rows" = Table.Skip(Source,13),
    #"Promoted Headers" = Table.PromoteHeaders(#"Removed Top Rows", [PromoteAllScalars=true]),
    #"Removed Top Rows1" = Table.Skip(#"Promoted Headers",2),
	TransformRows = Table.FromRecords(Table.TransformRows
	(
		#"Removed Top Rows1",
		(row)=> 
		let 
			check3Fill4 = if row[_3]<> "" then Record.TransformFields(row, {"_4", each  "----"}) else row,
			check4Fill4 = if check3Fill4[_4]<> "" then Record.TransformFields(check3Fill4, {"_5", each  "----"}) else check3Fill4
		in 
			check4Fill4

	))
in
	TransformRows

        you have to update this part according you needs. These two lines should show how to get there


        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