Re: he;p with sql+

On Jan 4, 10:50 am, Totti <saliba.toufic.geo..._at_gmail.com> wrote:
> hi all i want to generate the total sales of the 3 most sold products
> of a firm, i ll try to write it here
> as follows from more than one table but the result i am getting is
> awful, and has nothing to do with the real thing; take a look please
> and tell me what and where the problem might be:
>
> the result i intend to get is this :
> Month Year SP-20.1      SP-20.3      SP-20.4
> -----       ----        ------------    ------------    ------------
>    01 2006   24,700,000      880,000    1,476,000
>    02 2006   19,240,000      660,000    2,132,000
>    03 2006    8,320,000      330,000    2,296,000
>    01 2007   24,180,000      770,000      902,000
> ==================================================
> i am using the following formula:
>
> SELECT TO_CHAR(purinv.Inv_Date,'mm')
> MONTH ,TO_CHAR(purinv.Inv_Date,'YYYY') YEAR,
> SUM(DECODE(PURCH.PROD_CODE,'SP-20.2',sales.QTY*prod.unit_price,0)) AS
> "SP-20.2",
> SUM(DECODE(PURCH.PROD_CODE,'SP-20.1',sales.QTY*prod.unit_price,0))AS
> "SP-20.1" ,
> SUM(DECODE(PURCH.PROD_CODE,'SP-20.6',sales.QTY*prod.unit_price,0))AS
> "SP-20.6"
> from purinv, purch,prod,sales
> where purinv.Code = purch.Inv_Code and sales.prod_code = prod.code and
> purch.Prod_Code in ('SP-20.2', 'SP-20.1', 'SP-20.6')
> group by
> TO_CHAR(purinv.Inv_Date,'mm') ,TO_CHAR(purinv.Inv_Date,'YYYY')
> order by TO_CHAR(purinv.Inv_Date,'YYYY'),TO_CHAR(purinv.Inv_Date,'mm')
>
> the result i am getting has 2 wrong things, first of all it is all
> wrong :-), and second, when a month let us say had not any sales of
> those 3 product, it omits the whole thing, which something i dont
> want, for instance since from the 4th of 2006 untill the 12th there
> has been no sales of this product, but the formula doesnt show 0 as i
> wanted , instead it throws them out.
>
> concerning the result i am getting here it is:
>
> MO YEAR    SP-20.2    SP-20.1    SP-20.6
> -- ---- ---------- ---------- ----------
> 01 2006  497953000  497953000  497953000
> 03 2006          0          0              497953000
> 04 2007          0       497953000          0
> 05 2007  497953000          0        497953000
> 07 2007          0   497953000        497953000
> 08 2007          0   497953000        497953000
> 09 2007  497953000  497953000  497953000
> 11 2007          0          0              497953000
>  this is crazy i mean , please if you can help me correct the formula!

You don't take advice well, it appears. Charles Hooper gave you a solution to this very situation with another query (missing data) by suggesting, rightfully so, to use an outer join and even provided an in-line view to join to.

Your 'example' has the correct numbers? Or is this merely an indication of HOW you'd like the output to appear? Saying it's 'all wrong :-)' says nothing of what IS wrong or what the 'correct' output should be.

David Fitzjarrell Received on Fri Jan 04 2008 - 10:58:16 CST