I was install arcSDE with oracle.
Configure cliente oracle
Connect to geodatabase from arccatalog and ok
create user SDE with permissions in the same server all
Now, what is the next step?
There are a few more steps listed here:
Set up a geodatabase in Oracle—Help | ArcGIS for Desktop
I suppose beyond that would be to start populating your enterprise multi-user geodatabase with data!
Retrieving data ...