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Hi,
I would like to know whether it's possible to define an XML Schema for the
following XML document instance:
<root>
<a/><b/><c/>
<k/><k/><k/>
</root>
with the following constraints:
1) <a/>, <b/>, <c/> and <k/> can appear in any order
2) <a/>, <b/> and <c/> can appear at most once under <root>
3) <k/> must appear at least once.
So the following, as well as the example above is also valid:
<root>
<a/><k/><b/><k/><k/><c/>
</root>
Many thanks for your help in advance
Michael.
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