Learn XQuery in 10 Minutes, by Dr. Michael Kay - An XQuery Tutorial
Learn XQuery in 10 Minutes By Dr. Michael Kay is for all those people who really want to know what XQuery is, but don't have the time to find out. It's the fastest XQuery tutorial on the planet - read it now!
SQL Server Tools
SQL Server Tools in Stylus Studio simplify working with relational and XML data including exporting data from a SQL Server database into XML and importing XML data back into SQL Server. Supports Microsoft SQL Server 2000 and Microsoft SQL Server 2005
XQuery Functions - User Defined Functions in XQuery
Dr. Michael Kay's tutorial entitled: 'Defining your own Functions in XQuery' explains how to write powerful User Defined Functions in XQuery.
Database-to-XML Mapping
Stylus Studio features several database-to-XML mapping tools that allow you to easily query a relational database using SQL/XML or SQL and render the results as XML. Stylus Studio also supports the world's first and only visual SQL/XML Editor!