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RE: avoiding duplicates in XML instance

  • From: dave <ceek63@y...>
  • To: xml-dev@l...
  • Date: Tue, 30 Oct 2007 13:38:00 -0700 (PDT)

RE:  avoiding duplicates in XML instance

I also looked at Key/KeyRef (since, I shouldn't allow
Null values). But I couldn't find any relevant example
of an XSD and an XML instance.

--- Michael Kay <mike@s...> wrote:

> Look up xs:unique
> Michael Kay
> http://www.saxonica.com/ 
> > -----Original Message-----
> > From: dave [mailto:ceek63@y...] 
> > Sent: 30 October 2007 18:24
> > To: xml-dev@l...
> > Subject:  avoiding duplicates in XML
> instance
> > 
> > 
> > In my XML document,
> > I have a list of certain Elements at the global
> level which 
> > need to be referenced(each multiple times) like
> Pointers at 
> > various Local Scopes inside the XML instance. How
> do I design 
> > an XSD to satisfy this condition. I know you can
> use 'ref' 
> > inside the XSD but that doesn't seem to serve the
> purpose. It 
> > will create the Duplicate elements. 
> > 
> > I would like to use a sort of Pointer mechanism to
> refer to 
> > these Global Elements and not duplicate the same
> Element 
> > definition multiple times at various
> > Local scopes.   I would like some hints on how to
> > design such XSD.
> > 
> > +D

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