Insert a new row if 2 fields are field

[Yester07]

Hello,

I have a complex question I tried many solutions (please see below). I want to check if 2 fields are filled (not empty), if it is the case, I want to create a new row :

         1. In the first one (the original one), Keep the value of column B and delete the value of column C

         2. Adding a new row and keeping the value of column C and empty in the column B

Table : 

Col A	Col B	Col C	Col D
A1		C1	D1
A2	BX	C2	D2
A3	BZ	C3	D3
A4	B4		D4

Results : 

Col A	Col B	Col C	Col D
A1		C1	D1
A2	BX		D2
A2		C2	D2
A3	BZ		D3
A3		C3	D3
A4	B4		D4

I tried adding a new column where I check if 2 values are not empty, then I put the value of the column C. The probleme is the merging is not working and it can not enable me to delete the value of the row B in the orignial row :

= Table.AddColumn(#"Added Custom", "Custom", each if ([B] <> null and [C] <> null) then (Table.InsertRows(#"Added Custom", 0, {[A=[A], code fab B=[B], C="",D=[D]]}))else null)

When I expand columns, I have the first value of B and C in all the columns B and C...

= Table.ExpandTableColumn(#"Added Conditional Column", "Custom", {"A", "B", "C", "D"}, {"Custom.A", "Custom.B", "Custom.C", "Custom.d"})

I also tried to duplicate the rows where B and C are not empty, but I can not make a deletion at the same time...

[Vijay_A_Verma]

I need to know the logic for treatment of last row where B4 is present but C4 is not present. But your output shows a single row which removes B4 and brings in C4 whereas C4 was nor present in your input table.

[Yester07]

Sorry, it is just an input error. If only B or only C is filled, no treatment is done. thank you.

[Vijay_A_Verma · Accepted solution]

See the working here - Open a blank query - Home - Advanced Editor - Remove everything from there and paste the below code to test

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcjRU0lECImcQ7WKoFKsDFDMCsp0iQKIglosRRNQYJBoFEgWxXIwhoiYgUROIIS4mSrGxAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Col A" = _t, #"Col B" = _t, #"Col C" = _t, #"Col D" = _t]),
    #"Added Custom" = Table.AddColumn(Source, "Custom", each if ([Col B]<>"" and [Col B]<>null) and ([Col C]<>"" and [Col C]<>null) then {1,2} else null),
    #"Expanded Custom" = Table.ExpandListColumn(#"Added Custom", "Custom"),
    Custom1 = Table.ReplaceValue(#"Expanded Custom",each [Col C],each if [Custom] = 1 then null else [Col C],Replacer.ReplaceValue,{"Col C"}),
    Custom2 = Table.ReplaceValue(#"Custom1",each [Col B],each if [Custom] = 2 then null else [Col B],Replacer.ReplaceValue,{"Col B"}),
    #"Removed Columns" = Table.RemoveColumns(Custom2,{"Custom"})
in
    #"Removed Columns"

[Yester07]

Okey, you create a list of 1 and 2 for each row where the value of B and C are not null/empty. Thank you so much!