On 22 Feb 2007, at 20:17, Hamish Harvey wrote: >> Oh! I have to admit that I did not think that far. By "relational >> schemes" I just meant collections of table definitions by their >> attributes, together with some basic inter-table relationships like >> foreignkeys. Now, with such general integrity constraints in mind, >> the >> whole discussion might perhaps get quite another direction. Hm... > > But those integrity constraints _enforce_ a certain semantic > consistencies. They do not _represent_ semantic relationships as such, > do they? What's the difference? Richard > > Cheers, > Hamish > >Received on Thursday, 22 February 2007 20:01:33 UTC
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