sql help --urgent

From: Ravindra Basavaraja <ravindra_at_sentica.com>
Date: Fri, 20 Jul 2001 12:47:17 -0700
Message-ID: <F001.00350513.20010720114050@fatcity.com>

I have a table with a number column(Col A).I want to display A-1.There could be some negative values in
this A-1 column.But I want to display 0 whereever negative value appears.I can use the ROUND(A-1) but this
will round the other positive value to the next positve integer which I don't want to happen.

 select a,a-1,round(a-1) from t;

    A A-1 ROUND(A-1)
----- ---------- ----------

    3          2          2
    1          0          0


   .6        -.4          0

   .8        -.2          0

    6          5          5
  3.5        2.5          3
  .69       -.31          0
  2.7        1.7          2

sum         10.29------>this value is the sum of all the negative and

positive numbers

I want the o/p to be like this.The decimal numbers should not be rounded off to the next number.

 select a,a-1,round(a-1) from t;

    A A-1 MY REQUIREMENT
----- ---------- ----------

    3          2          2
    1          0          0


   .6        -.4          0

   .8        -.2          0

    6          5          5
  3.5        2.5          2.5
  .69       -.31          0
  2.7        1.7          1.7

Sum                             11.2(My REQUIREMENT)

My requirement is to compute the sum of the columns for exact value i.e I want the sum of only the positive numbers(negative numbers should not be counted for the sum that's why I want to display 0 for negative value as the sum function adds all the positive and negative numbers)

How can I do this

Thanks
Ravindra

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Author: Ravindra Basavaraja
  INET: ravindra_at_sentica.com

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Received on Fri Jul 20 2001 - 14:47:17 CDT