On January 23rd 2007 the World Wide Web Consortium announced that XQuery 1.0, XPath 2.0 and XSLT 2.0 are now official W3C Recommendations, meaning that the R&D activities regarding the current versions have come to a conclusion and that all three standards are now ready for implementation. On the other hand this also means that the work on the next versions has started – I believe the XML Query Working Group is now counting on feedback from implementors in order to improve the standards.
I've posted on this subject before, when the Proposed Recommendations were announced.
The specifications are available at the following locations:
- XQuery 1.0: An XML Query Language – W3C Recommendation 23 January 2007;
- XML Path Language (XPath) 2.0 – W3C Recommendation 23 January 2007;
- XSL Transformations (XSLT) Version 2.0 – W3C Recommendation 23 January 2007.
Additional documents are available at the following locations:
- XQuery 1.0 and XPath 2.0 Data Model (XDM) – W3C Recommendation 23 January 2007;
- XSLT 2.0 and XQuery 1.0 Serialization – W3C Recommendation 23 January 2007;
- XQuery 1.0 and XPath 2.0 Formal Semantics – W3C Recommendation 23 January 2007;
- XML Syntax for XQuery 1.0 (XQueryX) – W3C Recommendation 23 January 2007;
- XPath Requirements Version 2.0 – W3C Working Draft 3 June 2005;
- XQuery 1.0 and XPath 2.0 Functions and Operators – W3C Recommendation 23 January 2007.
As far as the XQuery/XPath functions are concerned the collection remains unchanged.
The R&D activities concerning XQuery 1.0 and XPath 2.0 Full-Text language extensions are also well under way.
I guess we should now expect some changes to the SQL Server implementation of the standards, perhaps not in a service release but certainly in the next full version of the platform.
ML
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