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Home -> Community -> Usenet -> comp.databases.theory -> Re: abstraction of table relationships
Marshall wrote:
> [...] He gave the example of Books and Authors.
> If they have a many-to-many relationship, he said it would
> be better if one could query all books by a given author
> in a simpler way, and have the system find the relationship
> automatically. So you could, say, simply:
>
> SELECT * from Books where AuthorId = 'Jane Austen';
>
> even if Author weren't a field of Books. The system
> would look at the schema for Books, and locate the
> "path" in the system whereby it could uniquely attribute
> an Author.
Oh my God! Do we really have to debate the Universal Relation Model again? :-)
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