--- In firebird-support@yahoogroups.com, "Ronaldo Rezende Vilela Luiz"
<ronaldinho79@b...> wrote:

> Hi.
> Should I create a dommain for all columns of my database?

Ronaldo, you should'nt, it depends on personal taste.

> When I create without specifying a dommain, an automatically
> dommain will be created?

Yes, look at description of rdb$relation_fields and rdb$fields
system tables.

Best regards, Alexander.