[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Some random noise on rational type systems for XML
> -----Original Message----- > From: Andrew Layman [mailto:andrewl@m...] > In XML there are three (not two) syntactic devices that people have at > various times asserted have some connection to the absence of > a tuple in > the relational model. > > XML has: > 1. Omission of an optional element. > 2. Presence of an element having the attribute xsi:nil > 3. Presence of an element having empty content. I don't see how any of these three could be interpreted differently if the element content is defined to represent a number.
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