Having a SharePoint on an instance [EC2 - AWS / Azure VM - Azure ] is the way we take SharePoint on Cloud (leaving the SharePoint Online with Office365). It would really great if we can connect the SharePoint instance with the Database as a Service like AWS RDS or Azure SQL Databases.
Is it possible in the first place? This is for both the cloud vendors AWS and Azure. I guess the main hurdle would be to bring the Database end point under the Subnet.