Empty segments

Here is a good write up on a new feature with 11gR2 called deferred segment creation which I figure we'll be encountering at some point in time since we upgraded from 10g to the Exadata platform.  As Oracle databases get smarter and smarter, we'll continue to see the possibility for things to slip in the cracks due to being designed under another set of criteria.  Unless you have the resources required to keep re-writing your code every time you do a major upgrade, but that's just not feasible in most shops today.