RE: [xml-dev] 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.

+D
--- Michael Kay <> wrote:

> Look up xs:unique
> 
> Michael Kay
> http://www.saxonica.com/ 
> 
> > -----Original Message-----
> > From: dave [mailto:] 
> > Sent: 30 October 2007 18:24
> > To: 
> > Subject: [xml-dev] 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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