"Steven" <songxin328@gmail.com> wrote in message
news:1176977151.318652.95400@b75g2000hsg.googlegro ups.com...
> Anybody knows this?
> Thanks a lot.....
> orz~
>

43


In all seriousness your question is near the level of "What is the meaning
of life?" What do you mean by cost? License cost? Site license cost (for
how many servers with how many CPUs, etc)? Over what time span? Or perhaps
you are asking about cost based optimizers?