On Sun, 13 Mar 2005 02:59 pm, Bruno Wolff III wrote:
> On Sat, Mar 12, 2005 at 23:05:41 +0200,
> Andrus Moor <eetasoft@online.ee> wrote:
> > I have table containing different types of documents (type A, B and C).
> >
> > Each document type must have separate sequential ID starting at 1
> >
> > ID of first inserted record of type A must be set to 1
> > ID of first inserted record of type B must be also set to 1
> > ID of second record of type A must be set to 2
> > etc.
>
If you are happy with the fact that a sequence may leave a whole in
the numbers. You are probably best to no set a default value for an
integer, or big integer. Then run a before trigger for each row. That
trigger will assign a value to the column based on the value given for
the type.
Regards
Russell Smith