Thank you Kishore & sambavan

my requirement ?
our backup & recovery strategy is rather limited.
we do only a daily full db export !

And I wanted to impove things and at the same time, wanted to set up a secondary db in sync (with the primary), so that it could serve as DSS (run only queries, no dml/ddl).

It was in the of the light above that I was asking my question.

thank you,
nk