> I have the folowing foreign key (Hotel,Epoca) with table Epocas that have
> Primary Key (Hotel,Codigo). Firebird permit Hotel field filled but Epoca
> with null value. This is correct or a bug?
>
> Hotel | Epoca
> 1 null
> 2 Alta

It is correct behaviour as described by Entry level of SQL92 standard.

Ivan
http://www.volny.cz/iprenosil/interbase