Re: NULL in IN clause

Havasvölgyi Ottó wrote:
> Hi,
>
> I have just run this command on 8.0.4 :
>
> SELECT 'foo' WHERE 0 NOT IN (NULL, 1);

0 <> NULL (Indeed nothing equals NULL, other then sometimes NULL itself)

0 <> 1

Therefore, the statement: 0 NOT IN (NULL, 1)
Should always equate to false.

Therefore No rows returned. Ever.

Terry
>
> And it resulted is zero rows.
> Without NULL it is OK.
> Is this a bug, or the standard has such a rule?
>
> Best Regards,
> Otto
>
>
>
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--
Terry Fielder
terry(at)greatgulfhomes(dot)com
Associate Director Software Development and Deployment
Great Gulf Homes / Ashton Woods Homes
Fax: (416) 441-9085