From the database level, how can you tell under which time zone a database is operating?

Whats the benefit of dbms_stats over analyze?

Typically, where is the conventional directory structure chosen for Oracle binaries to reside?

You have found corruption in a tablespace that contains static tables that are part of a database that is in NOARCHIVE log mode. How would you restore the tablespace without losing new data in the other tablespaces?

How do you recover a datafile that has not been physically been backed up since its creation and has been deleted. Provide syntax example.

What are the differences between a sys and system user and what are the extra privileges available to the sys user?

Wipro,