Return pre-UPDATE column values using SQL only

Question

I posted a related question, but this is another part of my puzzle.

I would like to get the OLD value of a column from a row that was UPDATEd - WITHOUT using triggers

Answer 1

when faced with this dilemma I added junk columns to the table and then I copy the old values into the junk columns (which I then return) when I update the record. this bloats the table a bit but avoids the need for joins.