> This is correct, since they are interpreted according to the connection
> encoding (and if none is specified, it uses default encoding for JVM).

I have tried to set connection encoding to 'OCTETS', but I got error:

Error connecting to database: (using class org.firebirdsql.jdbc.FBDriver)
GDS Exception. 335544325. bad parameters on attach or create database
CHARACTER SET OCTETS is not defined

David