On Oct 20, 2005, at 15:44 , Michael Fuhr wrote:
> expression IS DISTINCT FROM expression
>
> For non-null inputs this is the same as the <> operator. However,
> when both inputs are null it will return false, and when just one
> input is null it will return true. Thus it effectively acts as
> though null were a normal data value, rather than "unknown".
>
Interesting! Thanks, Michael. You don't happen to know off the top of
your head if that's standard SQL, do you?
Michael Glaesemann
grzm myrealbox com