check db version psu and patchset

select comments, version, bundle_series
from sys.registry$history
where bundle_series = 'PSU'
order by action_time;

select comments Last_patch from dba_registry_history order by action_time desc;

role to sys database vault

Getting an error when exporting full db with db vault installed even with sys user

grant dv_realm_resource to sys;
grant dv_realm_owner to sys;
grant dv_owner to sys;

grant above rules by logging in as db vault owner