|Subject||RE: [firebird-support] Why NULL <> NULL ?|
> On 19 May 2006 at 16:47, Alan McDonald wrote:is this so we can continue to avoid using equality eh?
> >equality of 2 unknown values. But if the "state" of 2 things is NULL,
> >then I argue they should be equal in the same way that the last
> >character on the end of all my C strings are the same!
> That's why FB2 has introduced operation IS [NOT] DISTINCT FROM.
> SY, Dimitry Sibiryakov.