How to check installed database version on networker client machines?

Could any one please tell me how to find what version of database (oracle, sql, UDB and etc) version installed on client servers?

I'm looking command to query from networker backup server as i don't have access to client servers.

echo print|nsradmin -p nsrexecd -i - -s

returns the networker version. But i need to know about the database version.

Thank you,

Peri