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RE: a structured query language for XML

From: Slein, Judith A <JSlein@crt.xerox.com>
Date: Wed, 18 Nov 1998 10:20:51 -0500
Message-ID: <201BB34B3A73D1118C1F00805F1582E8B76D03@x-wb-0128-nt8.wrc.xerox.com>
To: "'Jonathan Robie'" <jonathan@texcel.no>, "Slein, Judith A" <JSlein@crt.xerox.com>
Cc: "'www-webdav-dasl@w3.org'" <www-webdav-dasl@w3.org>, "Slein, Judith A" <JSlein@crt.xerox.com>, "'Jim Davis'" <jdavis@parc.xerox.com>
I would definitely leave it to other grammars like XQL to do any complex
structural searches.  (On a quick skim of the proposal, it looks to me as if
some changes would be needed to apply XQL to a search over the structured
properties of a collection of resources, as opposed to a search within the
content of a single resource.) 

But I do think it would dramatically increase the usefulness of basicsearch
at not much cost to add something along the lines of Alan's proposal.
Really all that's needed is something along the lines of his proppath
element, and changing the definitions of the comparison operators and the
isdefined operator to let them take a proppath as their first argument.

--Judy

Judith A. Slein
CR&T/ADSTC
jslein@crt.xerox.com
8*222-5169


> -----Original Message-----
> From: Jonathan Robie [mailto:jonathan@texcel.no]
> Sent: Tuesday, November 17, 1998 10:54 PM
> To: Slein, Judith A
> Cc: 'www-webdav-dasl@w3.org'; Slein, Judith A; 'Jim Davis'
> Subject: XQL: a structured query language for XML
> 
> 
> I've been reading through recent posts, and I thought it 
> might be useful to
> point out  a few things.
> 
> 1. The XQL query language can do structured queries on XML. See the
> following for descriptions of the language: 
> 
	http://www.w3.org/TandS/QL/QL98/pp/xql.html
 	http://www.texcel.no/whitepapers/xql-design.html

2. Any hierarchical structure may present itself as XML, even if it is not
physically stored as such. So a document hierarchy in a proprietary format
can still look like XML to the query language.

Hope this is helpful.

Jonathan
 
jonathan@texcel.no
Texcel Research
http://www.texcel.no
Received on Wednesday, 18 November 1998 10:17:22 GMT

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