Re: NULLs: theoretical problems?

From: Joe Thurbon <usenet_at_thurbon.com>
Date: Sat, 11 Aug 2007 23:53:45 GMT
Message-ID: <d_rvi.19396$4A1.5529@news-server.bigpond.net.au>

Jan Hidders wrote:
> On Aug 11, 1:44 am, Joe Thurbon <use..._at_thurbon.com> wrote:

>> Jan Hidders wrote:
>>>>>>>>> Just to avoid any misunderstandings: there has of course been lots of
>>>>>>>>> theory on certain interpretations of null values, such as the work by
>>>>>>>>> Raymond Reiter and ...
>> Hi Jan,
>>
>> Are you talking about Ray Reiter's work on default logic? Or is it
>> something else? (Just curious)

>
> @article{5388,
> author = {Raymond Reiter},
> title = {A sound and sometimes complete query evaluation algorithm
> for relational databases with null values},
> journal = {J. ACM},
> volume = {33},
> number = {2},
> year = {1986},
> issn = {0004-5411},
> pages = {349--370},
> doi = {http://doi.acm.org/10.1145/5383.5388},
> publisher = {ACM Press},
> address = {New York, NY, USA},
> }
>
> Not on line as far as I can see. Sorry.
>
> -- Jan Hidders
>

Thanks.

Cheers,
Joe Received on Sat Aug 11 2007 - 18:53:45 CDT