Cdbc (Cloud Database Connectivity) is a .NET library which can help windows native application or web application connect to cloud database.
It consists of Cdbc Client and Cdbc Service. Cdbc Client connects to Cdbc Service, which can provide proxy access to the database.
Cdbc Service uses wcf architecture so IIS on Windows instance, or other service that can run wcf on the cloud is needed.
Cdbc Client has the same syntax as ODP.net, SqlClient etc. User doesn't do any development on CDBC service.
Oracle ,SQL Server ,MySql and PostgreSql are supported now.