RE: [xml-dev] What niche is XQuery targeting?

["Dare Obasanjo" <dareo@microsoft.com>]

> -----Original Message-----
> From: Liam Quin [mailto:liam@w3.org] 
> Sent: Monday, December 13, 2004 1:55 PM
> To: Prakash, Prakash Yamuna, Yamuna
> Cc: XML Developers List
> Subject: Re: [xml-dev] What niche is XQuery targeting?
> 
> 
> My own guess would be that it'll start out replacing (or 
> subsuming) middleware -- the ability to do, in effect, joins 
> between data from disparate sources, such as two SQL 
> databases, some XML documents and perhaps an RDF store, 
> generating an XML report directly, is something difficult to 
> do with other technologies without getting deeply tied to a 
> single vendor.  Perl can do this, but with a lower level of 
> programming that's relatively fussy.

Huh? Exactly how does XQuery allow me to join data between disparate
sources such as two SQL databases, some XML documents and an RDF store
[in any sort of performant manner]?

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