I\'m writing an assignment for a databases class, and we\'re required to migrate our existing relational schema to Oracle objects. This whole debacle has got me wondering, just
I would have to say it's not why people buy Oracle. It's very non-portable/non-standard, and as Adam pointed out has some usage pitfalls as well. I've not personally seen the benefit to it. I don't know how widespread it's usage is, but I can't imagine it's very big. Take a look around this site to see how many questions are asked about it. That may give you some insight.
Well never used them in my practice, never heard anyone using them either, not widely used i guess, It matters when you have an object oriented database, oracle supports OO but is not an OO database. I think people who migrate from OO databases to Oracle use them widely