I need Hibernate to use different databases or database-schemas from one application. Can this be achieved using several Hibernate services in parallel or can it be achieved using multiple configuration files or both?

Or is there a completely different approach?

thanks.

You could use the attribute "schema" in the class-element of the mappingfile to implement this.
like this
<class name="Person" table="t_person" schema="schema1">.
Other possibilities are to use the features of Your database (synomyms in oracle).
But i never tried it myself.

Greetings