Re: Calculating Average on columns with zeros.

Mark.Powell_at_eds.com (Mark D Powell) wrote in message news:<2687bb95.0408050607.2cd6a38a_at_posting.google.com>...
> peterhardy_at_f2s.com (PeterHardy) wrote in message news:<17736c9c.0408050049.565668e5_at_posting.google.com>...
> > I'm trying to work out an average field on a report that i'm writing
> > and having the problem described below.
> >
> > e.g. if you had 3 weeks of cash which were 0, 2, 4 then a normal
> > average
> > would be ((0+2+4)/3) = 2 but the average that I want is (2+4)/2 = 3.
> >
> > Now I can do this in SQL by using AVG(cash) with a WHERE cash>0. But
> > the
> > trouble comes when all cash values are zero for all all columns on the
> > report.
> >
> > e.g. if I had
> > wk1 wk2 wk3
> > rowA 0 2 4
> > rowB 0 0 0
> > rowC 1 0 0
> >
> > I am using
> >
> > SELECT name, SUM(cash), AVG(cash) from TABLE where cash>0;
> >
> > And I get
> > rowA, 6, 3
> > rowC, 1, 1
> >
> > This is correct for those rows but I want a result for rowB that has
> >
> > rowB, 0, 0
> >
> > Can anyone help with this.
>
> Peter, the SQL you posted calculates the sum for a column on rows of
> data while the description is summing the columns on a single row.
> Which is it that you actually want? [A + B + C or summation of A for
> the row set]
>
> HTH -- Mark D Powell --

It is a summation of the row for the row set that i require. Received on Thu Aug 05 2004 - 20:54:57 CEST