Hello all

I recently got my DBA certification in Oracle 8. Since then 8i has become more prevelant in the work place and the job postings and Oracle has just released 9i.

1. Is OCP like Microsoft where you have to upgrade to keep your certification?

2. If I want to upgrade to 8i and later 9i do I only need to take the upgrade exams or will I eventually need to re-take the whole DBA track again.

I am a little foggy on this whole thing so if someone can shed some light on it for me it would be greatly appreciated