Sounds simple, right? That's its beauty. Much has been written about the intricacies and difficulties of ETL processes, delving deep into the crevices of tools such as SSIS, in order to wring maximum performance from each part of the process. Occasionally, however, someone presents an idea, a solution, of such elegance and simplicity that it immediately seems like common sense, and that everyone must be doing it this way already, though I suspect they aren't. Am I wrong?