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RE: XQuery and DTD/Schema?


xquery in asp .net
How do you execute Xquery in ASP?  Is is the same as using Xpath?  Can
someone give me an example?

Cody


-----Original Message-----
From: Betty Harvey [mailto:harvey@e...] 
Sent: Wednesday, July 03, 2002 10:44 AM
To: Michael Kay
Cc: xml-dev@l...
Subject: RE:  XQuery and DTD/Schema?



Thanks Michael and all who answered my question!  I didn't realize I would
hit so many 'nerve endings'.  Politics aside - organizations are making
business decisions based upon incomplete and/or inaccurate information.

Thanks again!

Betty

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Betty Harvey                         | Phone: 410-787-9200 FAX: 9830
Electronic Commerce Connection, Inc. |
harvey@e...                    | Washington,DC SGML/XML Users Grp
URL:  http://www.eccnet.com          | http://www.eccnet.com/xmlug/
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\\/\/

On Wed, 3 Jul 2002, Michael Kay wrote:

> The input to an XQuery query consists of (at compile time) a set of 
> type definitions and (at run time) a set of documents/trees with type 
> annotations. The set of type definitions can be empty, and the type 
> annotations can be defaulted, so queries can therefore be written 
> against documents that have not been subjected to schema processing.
>
> The XQuery working group has only recently started work on conformance 
> statements. There is a draft proposal on the table that defines a 
> conformance level for implementations that don't support schema 
> processing - in other words, such implementations don't handle type 
> definitions or type annotations. Whether this proposal makes it into 
> the next draft depends more (I think) on getting the detail right than 
> on any differences about the principle.
>
> Of course it's also possible that some vendors will want to impose 
> stronger constraints, for example that all the documents in the scope 
> of a single query conform to the same schema. Presumably people who 
> don't like such a constraint won't buy the product...
>
> As far as the XQuery spec is concerned, although the type system is 
> chosen to be compatible with XML Schema, there is no requirement for 
> the type definitions and type annotations actually to be produced by 
> XML Schema processing (just as XSLT can process a source tree that 
> wasn't created by parsing source XML).
>
> I hope this goes some way to answering the question.
>
> Michael Kay
> Software AG
> home: Michael.H.Kay@n...
> work: Michael.Kay@s...
>
> > -----Original Message-----
> > From: Betty Harvey [mailto:harvey@e...]
> > Sent: 02 July 2002 23:51
> > To: xml-dev@l...
> > Subject:  XQuery and DTD/Schema?
> >
> >
> >
> > I haven't been following the progress of XQuery closely.  I was 
> > advised today that a W3C Schema had to be developed instead of a DTD 
> > because XQuery only works with Schema.  I was skeptical that the 
> > XQuery specification would really say this.  However, I found what I 
> > believe to be conflicting information in the XQuery specification:
> >
> >   "XQuery's type system is based on [XML Schema]. Work is in 
> > progress to
> >    ensure that the type systems of XQuery, the XQuery Core, and XML 
> > Schema
> >    are completely aligned."
> >
> > I interpret the above statement to mean that XQuery datatypes will 
> > be based upon XML Schema.  I believe this statement may be the 
> > reason for others thinking that an XML Schema and not DTD's or RELAX 
> > NG was required in order to use XQuery.
> >
> > Any thoughts on my interpretation of the specification.  Thanks!
> >
> > Betty
> >
> > /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
> > Betty Harvey                         | Phone: 410-787-9200 FAX: 9830
> > Electronic Commerce Connection, Inc. |
> > harvey@e...                    | Washington,DC SGML/XML
> > Users Grp
> > URL:  http://www.eccnet.com          | http://www.eccnet.com/xmlug/
> > /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\\/\/
> >
> >
> >
> > -----------------------------------------------------------------
> > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an 
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> <http://www.oasis-open.org>
>
> The list archives are at http://lists.xml.org/archives/xml-dev/
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