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_at_news-server.bigpond.net.au>
>
> _at_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
>
Date: Sat, 11 Aug 2007 23:53:45 GMT
Message-ID: <d_rvi.19396$4A1.5529_at_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)
>
> _at_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 Sun Aug 12 2007 - 01:53:45 CEST