Hello Philip,
I am using PHP to show the results in a html file, and I have this
`partial sum' running the same way you told. I am just looking around to
know if I can do this straight from a sql query, without any type of
external script, as I am already doing.
Thanks for you answer.
Best Regards,
Marcelo Pereira
-- Remember that only God and Esc+:w saves.
__
(_.\ Marcelo Pereira |
/ / ___ |
/ (_/ _ \__ Matematica/99 - IMECC |
_______\____/_\___)___Unicamp_______________/
--- Philip Hallstrom, with his fast fingers, wrote:
:> I don't know of a SQL query that would do it, but you could do it in pgsql
:> or some other language... just run the normal query (the first one) and
:> then as you loop through the result set add 'value' to 'partial_sum' and
:> there you have it...
:>
:> -philip
:>
:> On Thu, 28 Mar 2002, Marcelo Pereira wrote:
:>
:> > Hello All,
:> >
:> > I have a single table as:
:> >
:> > cod date value
:> > ---+-------------+-------
:> > 1 | 2002-03-12 | 5
:> > 2 | 2002-03-13 | 4
:> > 3 | 2002-03-13 | 7
:> > 4 | 2002-03-14 | 3
:> >
:> > ... and I would like to do a select that do `partial sums'.
:> >
:> > So, for instance, I would like to do a select that returns:
:> >
:> > cod date value partial sum
:> > ---+-------------+-------+--------------
:> > 1 | 2002-03-12 | 5 | 5
:> > 2 | 2002-03-13 | 4 | 9
:> > 3 | 2002-03-13 | 7 | 16
:> > 4 | 2002-03-14 | 3 | 19
:> >
:> > As you can see, the row `partial sum' is what I am looking for. Do you
:> > have any idea how can I do it?
:> >
:> > Thanks in advance,
:> >
:> > Marcelo Pereira
:> >
:> > -- Remember that only God and Esc+:w saves.
:> > __
:> > (_.\ Marcelo Pereira |
:> > / / ___ marcelo@pereira.com |
:> > / (_/ _ \__ [Math|99] - IMECC |
:> > _______\____/_\___)___Unicamp_______________/
:> >
:> >
:> >
:> > ---------------------------(end of broadcast)---------------------------
:> > TIP 5: Have you checked our extensive FAQ?
:> >
:> > http://www.postgresql.org/users-lounge/docs/faq.html
:> >
:>
