XML and XQuery support are two fundamental advancements in SQL Server 2005 and without knowing them, I don’t think so that any body can get full benefit of SQL Server 2005. I suggest every reader that if you have not already started learning XQuery then don’t waste more time and start learning it today. Following are some useful resources to learn:
Fundamentals of XML Data types
Introducing XML in SQL Server 2005 (webcast)
XQuery and XML
XQuery Tutorial
