- From: Paul Cotton <pcotton@microsoft.com>
- Date: Wed, 12 Jun 2002 10:40:41 -0400
- To: "Yves Gallen" <ygn@infobi.com>, <www-ql@w3.org>
XPath 1.0 is a W3C Recommendation and is used from XSLT 1.0 and XPointer. XPath provides a path expression language for both these other specifications. XQL and XML-QL were independent early efforts to create an XML query language. Most of the authors of these proposals are now working within the W3C XML Query WG to produce a single W3C XML query language which will be called XQuery. W3C XML Query will be the definitive XML query language. This is the effort you should be following today. See http://www.w3.org/XML/Query for more information and pointers to the current specifications. BTW XML Query 1.0 and XPath 2.0 are closely related as you will find out by reviewing the specifications. /paulc Chair, XML Query WG Paul Cotton, Microsoft Canada 17 Eleanor Drive, Nepean, Ontario K2E 6A3 Tel: (613) 225-5445 Fax: (425) 936-7329 <mailto:pcotton@microsoft.com> > -----Original Message----- > From: Yves Gallen [mailto:ygn@infobi.com] > Sent: Wednesday, June 12, 2002 4:53 AM > To: www-ql@w3.org > Subject: xml and query languages > > > Can someone explain why there are so many query langages for xml files ? > xql, xpath, xpointer, xml-ql, xquery ... :o( > What's the reason of this non-unicity ? > What are the relationships between all this solutions ? > What are the most important recommandations we have to follow in the > future > ? > They are so numerous and they seem to be very close, the interactions and > the dependencies are too dark for me..... > > Thanks > > Y.G. > >
Received on Wednesday, 12 June 2002 10:40:52 UTC