These are some of the things that you don't have in the standard version of oracle:
1. Non of the parallel options, like parallel querry and parallel server and etc
2. RMAN cannot open multiple channel to do backup. it is restricted to use one channel at a time :(
3. Stand by database feature is disable.
4. Fast start option is not available
These are some of the many differences. For detail information, I would suggest that you check at http://technet.oracle.com
Sam
Thanx
Sam
Life is a journey, not a destination!