Running APEX in its own database instance

Hi,
I'm currently in the process of wanting to upgrade from apex 2.0 (or there abouts) to a current version. Have been thinking though, that it might be work actually spinning up apex in its own instance ( most likely just running under OE ) and connecting to our core database.
The advantage this would have, would be easier upgrades ( very easy to rollback if something goes wrong ), plus I imagine apex would get a significate speed boost from running on 10g, as apposed to 9i which are core database is.
Any thoughts on this? Would it be worth the hassle? I'm I just going to move the speed issues from slow pl/sql to remote database overhead?

It's really not a good idea to install APEX in a separate DB. Performance will TERRIBLE over DB links. You have add views or synonyms for all of the remote objects so APEX can see them. The OP is talking about 2 different versions of the database, one of which (9i) isn't even supported anymore under standard support. With 2 different versions of the database, you essentially get a union of all possible bugs in each database.
Tyler

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