
W3C's XQuery 1.0 specification is in the Working Draft stage, but most relational and XML database vendors now offer Web-based interactive XQuery demonstrations. The next version of SQL Server (codenamed "Yukon") promises native support for XQuery, a.k.a "SQL for XML". Learn how to substitute FOR, LET, WHERE, and RETURN (FLWR) statements with XPath 2.0 expressions for SQL SELECT... FROM... WHERE... ORDER BY queries with a downloadable Windows form XQuery test harness. Give Microsoft's implementation of XQuery 1.0 classes for the .NET Framework a online ASP.NET workout at http://www.oakleaf.ws/xquery/.
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