I have an unpivoted table for which I need to replace column attributes with a set of column values. It's probably easier for me to visualize. Here's the starting point:
I am wanting to replace the "Column#" values in the Attribute column so they match the "header" values in the Value column (i.e., Column1 becomes OrderID, Column2 becomes Item, etc.); this would be the desired result:
If this were Excel, I'd probably just do a VLOOKUP, but I'm not sure how to achieve that with Power Query without resorting to a separate query.
Thanks, @Syndicate_Admin! That was staring me in the face…