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Re: Elements cannot be described more than once in DTD, right ?

  • From: Pavel Velikhov <pvelikho@c...>
  • To: Marcus Carr <mrc@a...>
  • Date: Wed, 22 Sep 1999 00:19:14 -0700

Re: Elements cannot be described more than once in DTD

> > It is interesting to find out whether this is a serious problem for you,
> > or something that you can get around/tolerate.
> 
> I'd be a bit surprised if anyone considered this to be a serious problem and amazed if it was
> intolerable. :-) Schemas are interesting and will probably play a big role in times to come,
> but I don't believe that they offer anything that can't currently be done by other means.
>

Well, theoretically they are pretty serious problems. If you want to
take a union of DTDs,
say when integrating two XML databases, you might end up with a DTD that
allows a lot of
junk elements, while the original DTDs were strict enought. In the
database setting, when
the DTDs are used as database schemas, this leads to all sorts of
problems.

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