Hi,

> Can anybody recommend anything out of the somewhat bemusing selection
> of 'persitance layers' available, that works well with Firebird and
> Oracle, ideally with a shortish learning curve? If it could generate
> metadata and handle the differences in SQL dialects as well, I will
> owe you a beer <g>

Can you check Hibernate? It claims to work with InterBase (it was
tested with InterClient) and I think it will work with Firebird and
JayBird too. And sure it works with Oracle.

Roman