I can then do all kinds of things to see what objects are new, what columns have been added, how catalog views have changed, and a whole slew of other things I explain in the previous posts.
There are tools that can be bent and massaged to help with this type of comparison, of course, and I do need to give DBA xPress a thorough try. But in the meantime, I like being able to fully control both the output and the join criteria.
Anyway, this has been a very useful method, and I'll let you guess why it came to mind this week. :-)