Re: DECODE / CASE Question
Date: Mon, 2 Jun 2008 08:27:31 -0700 (PDT)
On May 30, 10:51 am, "ame..._at_iwc.net" <ame..._at_iwc.net> wrote:
> Say we have a very long DECODE statement like this:
> DECODE(2,-99999,0,2) + DECODE(5,-99999,0,5) + DECODE(7,-99999,0,7) -
> DECODE(8,-99999,0,8) * DECODE(9,-99999,0,9) stuff
> Pardon the use of real numbers, that was for testing.
> Now, I want to basically say if the value of this is 0, then 0 should
> be returned, otherwise the result of the math should be returned.
> Can I use a case statement for this somehow? Or do I enclose it
> around another DECODE? Can I use the generated column alias???
One possibility which doesnt get rid of the decodes, but leaves your
WITH x AS
( SELECT decode( a, -999999, 0, a ) AS a,
decode( b, -999999, 0, b ) AS b
SELECT a + b + c - d * e
FROM x Received on Mon Jun 02 2008 - 10:27:31 CDT