Martjin, > Interesting. However, in my experience very few things have "natural > keys". There are no combination of attributes for people, phone calls > or even real events that make useful natural keys.
I certainly hope that I never have to pick up one of your projects. A table without a natural key is a data management disaster. Without a key, it's not data, it's garbage. -- --Josh Josh Berkus Aglio Database Solutions San Francisco ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
