Re: Examples of SQL anomalies?
From: David Cressey <cressey73_at_verizon.net>
Date: Sat, 05 Jul 2008 12:09:36 GMT
Message-ID: <4wJbk.112$0V1.4_at_trndny01>
Date: Sat, 05 Jul 2008 12:09:36 GMT
Message-ID: <4wJbk.112$0V1.4_at_trndny01>
"Marshall" <marshall.spight_at_gmail.com> wrote in message
news:6ad51b62-e66a-4daa-b21c-c361fd6b22f8_at_8g2000hse.googlegroups.com...
> What can be meaningfully asked is determined by the schema.
>
> If the schema specifies that the weight attribute is nullable,
> then the question of how much a shipment weighs in total
> is a question that cannot be asked.
>
>
> Marshall
Bingo! Received on Sat Jul 05 2008 - 14:09:36 CEST