Great idea! The benefits of centralized TNS alias management are obvious – it significantly simplifies connection configuration to all databases across the organization. With a single shared tnsnames.ora file, it's easy to update access details for all users and applications at once, without the need for individual changes. I strongly recommend giving this idea serious consideration.

Highly wanted feature - to be able effectively "manage" assignment of Db instance in DV connection via reference of connect descriptor defined in tnsnames.ora (central place for managing connection in our institution) instead of having to "paste" the whole connect string into connection definition. Basically we need same option as we have now when defining Connection Pool object in RPD (where in Data Source Name we refer connect descriptor from tsnames.ora). This is valid for OAS (not sure whether OAC can benefit from this).