Physical Layer Tips and Gotcha’s

Originally published 5/23/2007

I wanted to talk about our much ignored friend, the Physical Layer.  I say much ignored, because it generally is.  After you import, set up a PK and some joins, you usually are done with the physical layer – aside from the occasional alias.  But you should pay more attention to it, as it can have some unforeseen problems if you overlook the details.