- From: Eric Prud'hommeaux <eric@w3.org>
- Date: Thu, 15 Apr 2004 13:20:09 -0400
- To: Howard Katz <howardk@fatdog.com>
- Cc: RDF Data Access Working Group <public-rdf-dawg@w3.org>
On Thu, Apr 15, 2004 at 09:33:30AM -0700, Howard Katz wrote: > > Here's the additional reference on XQuery for those who like lots of code > snippets when exploring new languages: > > http://www.datadirect.com/news/whatsnew/xquerybook/index.ssp > > This is Jonathan's Robie's Chapter One tutorial introduction to XQuery from > "XQuery from the Experts". It's lengthy (78 pages I think) but highly > readable. > > Who was it that requested pointers on XQuery and SQL? Was that you, Andy? > Sorry, I didn't jot down what your specific interest was. If you can let me > know, I can point you in the appropriate direction. I can't speak to Andy's agenda, but one point that's been kicking around in the XQuery/RDF Query arena for a while is that XQuery can be used to express SQL queries so it must be able to express RDF queries. I've seen a couple approaches that I believe workable [1] [2], but would like to see how people solve the problem for SQL. I suspect that in standardizing an RDF query language we are going beyond where existing SQL mappings to XQuery have gone in that we want *one* mapping to XQuery that operates on XQuery+whatever implementations from different vendors. Does such a "standard" mapping to SQL exist? [1] http://www.w3.org/2001/11/13-RDF-Query-Rules/#XQueryFA [2] http://www.w3.org/2001/11/13-RDF-Query-Rules/#TreeHugger -- -eric office: +81.466.49.1170 W3C, Keio Research Institute at SFC, Shonan Fujisawa Campus, Keio University, 5322 Endo, Fujisawa, Kanagawa 252-8520 JAPAN +1.617.258.5741 NE43-344, MIT, Cambridge, MA 02144 USA cell: +1.857.222.5741 (does not work in Asia) (eric@w3.org) Feel free to forward this message to any list for any purpose other than email address distribution.
Received on Thursday, 15 April 2004 13:20:09 UTC