Надеюсь, это поможет вам ...
select o1.owner,o1.object_name, o2.owner,o2.object_name
from PUBLIC_DEPENDENCY t, Dba_Objects o1, Dba_Objects o2
WHERE t.object_id=o1.object_id
AND t.referenced_object_id=o2.object_id
AND o1.object_name="your_object_name"