> Can anyone tell me the step-by-step way to convert a database in
> ISO8859_1 to the UNICODE_FSS?

I don't know if it's possible to *convert* the database. AFAIK you
will most likely have to rebuild it, using a different schema and then
pump the data from the ISO8859_1 database to the Unicode database,
thereby converting all the strings from ISO 8859-1 to UTF-8.

Aside from that: Why do you want to use UNICODE_FSS? It's an outdated
implementation. Firebird 2 has a better, more correct, implementation
and the character set is named UTF8 there.


Best Regards

Stefan