Obtains a connection from this provider. The concept of a connection in this case is not strictly an active
duplex UDP or TCP connection to the underlying database. It can be thought of more as a gateway, a path for
inserting objects that may use a persistent connection or may use HTTP web service calls, etc.
Where applicable, this method should return a connection from the connection pool as opposed to opening a
brand new connection every time.
a connection that can be used to create and persist objects to this database.