... Yes, I understand that. However, my real question is how to get the database to do it. So if I have a table with records
1,2,3,4,5,6,7,8,9,10
and tomorrow my extract has
4,5,6,7,8,9,10,11,12,13
what I want to have happen are the following:
Drop 1,2,3 from the table (or the query...