> Firebird V1.0 and interbase Open source 6.0.1.6
>
> I known Firebird and interbase is compatiable but i want to know is
>
> 1. Is need to use IB to backup GDB and restore it in Firebird .

You could probably use the file without the backup/restore (the ODS has
not changed) but to be safe you should backup/restore.

> 2. Sometimes ago , i decide to go back IB , can i just copy gdb to
> original IB server,or Backup in Firebird and Restore in IB . or it's
> impossible (Assume no Firebird feature add in the GDB)

Yes, you can backup FB and restore IB -- by why would you? (Biased
rethorical question from a Firebird Admin ;-])

> 3. If i use Firebird 16K pagesize , can i backup the GDB and restore
> in IB Use 8K pagesize .

Yes.


Sean