Delete a Service Instance
When you delete a service instance for Oracle Oracle Database Cloud Schema Service, all data objects and data is removed. Removing an instance provides you with the ability to completely start over with a new service instance.
Note:
If you purchased the service before August 2017, your service will not support multiple service instances and you can’t delete a service instance.The Schema Service instance and all its data objects and data has been removed. It is not possible to recover objects or data once this is done.