"An excellent place to start is the documentation.
The 2 day DBA and Concepts guides will teach you quite a lot about the architecture and administration of Oracle.
10gR2 Docs
11gR2 Docs"
"If you would like someone to spend time helping you solve this, please keep in mind that including a reproducible example along with a brief explanation of what you are trying to accomplish will help things along a bit."
"My suggestion would be that you pick one of the topics you have mentioned and learn it. If you are new to Oracle then RAC and Performance tuning are not really good places to start learning about Oracle.
The concepts manual is available to read…"
"An excellent starting point would be to read the Concepts manual completely, front to back. Personally I would read it, and then build a test database, read the Concepts manual again, experimenting on the database as I got to parts of the manual I…"
"From your problem statement it would appear that what you want to do is make the database startup using the spfile. What exactly happens when you attempt to do so?
Please list all the steps you take, and the errors that occur."
Are you an Oracle blogger attending Oracle Open World 2009?If so, you are invited to attend this gathering -- a chance to meet your online buddies face-to-face in relaxed and informal atmosphere.This year, we decided to make it a little differently - we will NOT be in the pub. But... DON'T PANIC.Some more details on my Pythian blog.See More