> Well, short answers: No, I don't master SQL but know enough of it. No, I
> didn't worked with other RDBMS, just did too many little programs with
> Firebird and with MySQL. Yes, my programs are C/S. Yes, I know the
> differences.
>
> So, my question continues: whose are the best books, articles or docs then I
> can read?

I have always found the Release Notes quite an interesting source of
Firebird information. Even on their own, separate from any other
documentation.

Pepak