The DBA can grant you SELECT privileges to the V$ performance views. It's good for instance tuning, but not as effective as SQL Trace or ADVISOR privilege for query tuning.
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The DBA can grant you SELECT privileges to the V$ performance views. It's good for instance tuning, but not as effective as SQL Trace or ADVISOR privilege for query tuning.
To successfully run an ALTER SYSTEM command, you don't need to be the DBA, but you do need the ALTER SYSTEM privilege to be granted to you (or to the "user" owning the application through which you connect to the database - which may be different from "you" as the "user" ).