> In both cases the idea is the same, we’re configuring the connection, making it behave differently. This is the impedance mismatch. The _connection_ exists a

> In both cases the idea is the same, we’re configuring the connection, making it behave differently. This is the impedance mismatch. The _connection_ exists at a layer beneath the database/application layer. You're not configuring the _connection_, you're configuring the _session_! And the relationship between connections and sessions is one-to-many, not one-to-one.