hola,
llevo rato dandole vueltas y nada de nada.... me da error. ¿que hago mal?
create table boxmail(
id_mail int(6) not null primary key auto_increment,
id_group int(4) not null,
mail varchar(50)not null,
foreign key(id_group) references groupfull(id_group) ON DELETE CASCADE ON UPDATE CASCADE,
unique(mail))type=innodb;
gracias!!!