Forum Discussion

rajeshchawla's avatar
rajeshchawla
Helper I
5 years ago
Solved

Using TransformColumns with newGuid for each row

Hi folks,

 

I'm working to replace row values in a column if it's null to a new GUID. What I have places the same GUID for each row. 

 

#"FixMyCoolColumn" = Table.TransformColumns (#"Removed Blank Rows", {{"CoolColumn", each if _ = null then Text.NewGuid() else _ } } )

 

Any thoughts on how to make each row have a unique GUID ?

 

Regards,

Rajesh

 

  • It is a know issue with Text.NewGuid().

    Try a workaround like:

    = Table.TransformColumns(#"Removed Blank Rows",{"CoolColumn", each if _=null then try error Text.NewGuid() otherwise Text.NewGuid()  else _})

3 Replies

  • PC2790's avatar
    PC2790
    Community Champion

    It is a know issue with Text.NewGuid().

    Try a workaround like:

    = Table.TransformColumns(#"Removed Blank Rows",{"CoolColumn", each if _=null then try error Text.NewGuid() otherwise Text.NewGuid()  else _})
      • Anonymous's avatar
        Anonymous
        Not applicable

         

         

        Table.TransformColumns(lastTab,{{"Column2", each let tng=Text.NewGuid() in if _=null then tng else _}})

         

         

        I had never come across this interesting feature before. The problem seems to be circumvented even so or by filling in a whole new column of NewGuid and then taking the ones you need from here

         

        or, perhaps the best way:

         

        Table.TransformColumns(lastTab,{{"Column3", each _??Text.NewGuid() }})