Re: Does Codd's view of a relational database differ from that ofDate& Darwin? [M.Gittens]
From: paul c <toledobythesea_at_oohay.ac>
Date: Tue, 07 Jun 2005 14:59:52 GMT
Message-ID: <IDipe.1593625$6l.719448_at_pd7tw2no>
>
>
> I disagree; suppose 90% of salaries are unknown. Someone does a quick
> query to get the total estimated salary bill, not realising this. They
> are going to get a shock when the real thing comes through!
> ...
Date: Tue, 07 Jun 2005 14:59:52 GMT
Message-ID: <IDipe.1593625$6l.719448_at_pd7tw2no>
Paul wrote:
> Mikito Harakiri wrote:
>
>>Hear, hear! It totally escapes me how could somebody invent putting
>>nonumeric value ("not salaried") into numeric column. For all reporting
>>purposes unknown salary is salary equal to 0.
>
>
> I disagree; suppose 90% of salaries are unknown. Someone does a quick
> query to get the total estimated salary bill, not realising this. They
> are going to get a shock when the real thing comes through!
> ...
p Received on Tue Jun 07 2005 - 16:59:52 CEST