@dreispt

Regarding Odoo App named "External Database Sources" per this link[https://apps.odoo.com/apps/modules/9.0/base_external_dbsource/]Would this Addon lets Odoo to be based 100% on Oracle (with no need for postgres database) OR it is just help accessing other datasources side by side with main core postgres database?
In other words can we use "External Database Sources" Odoo App to let all of Odoo modules use Oracle database in same exact default way for Postgres?