This is exactly what I need..
Thank you very much for your kindness, Doug.
Thank you...thank you...very....very,,, much.
--- Doug McNaught <doug@mcnaught.org> wrote:
> Prabu Subroto <prabu_subroto@yahoo.com> writes:
>
> > If I read your suggestion, that means...I have
> drop
> > the column "salesid" and re-create the column
> > "salesid". and it means, I will the data in the
> > current "salesid" column.
> >
> > Do you have further suggestion?
>
> You can do it "by hand" without dropping the column:
>
> CREATE SEQUENCE salesid_seq;
> SELECT setval('salesid_seq', (SELECT max(salesid)
> FROM sales) + 1);
> ALTER TABLE sales ALTER COLUMN salesid DEFAULT
> nextval('salesid_seq');
>
> This is the same thing that the SERIAL datatype does
> "behind the
> scenes".
>
> I can't vouch for the exact syntax of the above but
> that should get
> you started.
>
> -Doug
> --
> Let us cross over the river, and rest under the
> shade of the trees.
> --T. J. Jackson, 1863
>
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