This article introduces the W3C's XQuery specification, currently winding its way toward Recommendation status after emerging from a long incubation period behind closed doors. The specification is a complex one that consists of six separate working drafts, with more to come. This article provides some background history, a road map into the documentation, and an overview of some of the technical issues involved in the specification. A sidebar takes a quick look at some key features of XQuery's surface syntax. Code samples demonstrate the difference between XQuery and XQueryX and show examples of the surface syntax.
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