My understanding is that embedded Firebird does not support multiple
concurrent connections. However, I am able to open multiple connections
via Jaybird. I'm a bit suspect of these and suspect there will be
problems (deadlocks?, data corruption?) if I use them non-serially (i.e.
from different threads).

Is this the case? If so, should Jaybird throw an exception when multiple
connections to the same database file are opened?

-- Garrett