P E R F E C T !!!
Hello Jean-Luc,
Thanks for your answer, it was exacty what I was needing.
Best Regards,
See ya,
Marcelo Pereira
-- Remember that only God and Esc+:w saves.
__
(_.\ Marcelo Pereira |
/ / ___ |
/ (_/ _ \__ Matematica/99 - IMECC |
_______\____/_\___)___Unicamp_______________/
--- Jean-Luc Lachance, with his fast fingers, wrote:
:> Marcelo,
:>
:> Assuming that "cod" is unique and sequencial, you can use the following:
:>
:> SELECT *, ( SELECT SUM( value) from table as t2 where t2.cod <= t1.cod)
:> as running_total
:> FROM table as t1
:> ORDER BY cod;
:>
:> jll
:>
:>
:> 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
:>
