[Announce] XQilla version 1.1.0 releasedJohn Snelson john.snelson at oracle.com
Tue Sep 4 13:23:25 PDT 2007
Andrew Welch wrote: > On 9/4/07, John Snelson <http://x-query.com/mailman/listinfo/talk> wrote: >> Andrew Welch wrote: >>> The key point here is that the XSLT has access to whole result set, >>> not just each tuple, so that it can use its powerful grouping >>> facilities over the whole set. You use XQuery to construct the result >>> set, and XSLT to process it. >> You'll be looking forward to XQuery 1.1 then - with it's promised >> grouping facilities ;-). > > If it follows XSLT then 1.1 will be dropped in favour of 2.0... and > it'll be another 7 years in the making :) > > There are other benefits of XSLT over XQuery though - if your target > output is markup then its much nicer to generate that markup in XSLT > than XQuery, and XSLT's recursive processing model is better suited to > document centric XML - for example "copy the entire document except > <para>s with no <subpara>s" How about this XQuery Update: copy $doc := doc("myDocument") modify delete nodes $doc//para[not(.//subpara)] return $doc That's exactly the kind of use case that I expect to be more intuitive to do in XQuery Update. However, I do agree that XSLT is much nicer for expressing certain use cases - like creating presentation markup from declarative markup, for instance. > XQuery [is | should be] much better for selecting nodes, so XSLT with > embedded XQuery seems a natural combination for XML dbs that store > document centric XML with a target output of (X)HTML. I'm not sure I agree. XSLT 2.0 uses XPath 2.0, and there isn't a lot that XQuery has that XPath 2.0 doesn't have. The only truly substantive things are "order by" and node construction - but XSLT can already do both of them. John
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