I'm new in using EM and all oracle admin thing :) so could any one help or at least point me to a document that shows me the way:
I have 5 databases in 5 different hosts 2 of them 11g enterprise and 3 are XE.
My question is it possible to use EM in one of the enterprise databases to control and manage all my databases?
if so how? and if not what tool should I use?