Complicated SUM()

Posted on 2006-06-22
Last Modified: 2008-03-03
The table I'm working in has 4 columns that I am worried about: Program, direct, df_date and class.

What I need to do is a sum of direct with a group_by program and df_date where class = 'AC'.  Simple enough.  However, the values I need to pull for the sum need to be a sum of all items on that date and all previous dates.

So sum(direct at Date1) = sum(direct at Date 1)
   sum(direct at Date2) = sum(direct at Date 2) + sum(direct at Date 1)

At any one run of the query it would only be getting data for one Program.  So there will probably be another part of the Where - Program = "PID".  Right now I'm just trying to see if this is a concept I should try and pursue (sum on the fly) or if I should try and find a different way.

Also, this is going to be part of a coldfusion page, which is  why I would like to do it with one query.

Any tips would be very helpful.

Question by:Pawlikj
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LVL 10

Expert Comment

ID: 16963823
post the following.

1. table struct with col name and data type
2. input data ...
3. sample o/p data required...

LVL 50

Expert Comment

ID: 16963864
sounds like

select A.program,A.dfdate,sUm( as total
 from yourtable as A
 Inner Join Yourtable as B
 on a.program = b.program
 and a.dfdate >= b.dfdate
 and a.class=b.class
 where a.class='AC'
 group by a.program,a.dfdate
 order by 1,2 desc

Author Comment

ID: 16964218
The data I get back when I run

SELECT program, df_date, SUM(direct) AS acwp FROM opp.tphase WHERE class = 'AC' AND program = 'E01043' GROUP BY program, df_date

Program     DF_Date         ACWP  
E01043       10/30/2005     1204.55
E01043       11/27/2005     711.08
E01043       12/25/2005      26.71

When I run your query, it should spit out:
Program     DF_Date         ACWP  
E01043       10/30/2005     1204.55
E01043       11/27/2005     1915.63   <-----1204.55 + 711.08
E01043       12/25/2005     1942.34   <-----1204.55 + 711.08 + 26.71

What I am getting though is:
Program     DF_Date         ACWP  
E01043       10/30/2005     3613.65
E01043       11/27/2005     5746.89
E01043       12/25/2005     5827.02

It is giving me 3 times the value it should be.

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LVL 32

Accepted Solution

bhess1 earned 125 total points
ID: 16964641
This should do what you want.

SELECT tp.program,
    (SELECT SUM( FROM opp.tphase x
     WHERE  x.program = tp.program
        AND x.df_date <= tp.df_date
        AND x.class = tp.class
    ) AS ACWP
FROM opp.tphase tp
WHERE tp.class='AC'
GROUP BY tp.program,
ORDER BY tp.program,

Expert Comment

ID: 16964896

just a thought


sum( direct ) +       -- today s value
      -- yesterday s value
      select sum( direct ) from @tb ytr -- yesterday
      dateAdd( day , -1 , now.df_date )

  @tb            now      -- today

where class = 'AC'

group by Program, df_date


Assisted Solution

nicolasdiogo earned 125 total points
ID: 16964904

sum( direct ) +      -- today s value
     -- yesterday s value
     select sum( direct ) from @tb ytr -- yesterday
     dateAdd( day , -1 , now.df_date )

     group by df_date

  @tb          now     -- today

where class = 'AC'

group by Program, df_date

sorry, i added the group by in the inner query

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