The W3C grants Recommendation status to XQuery, the XML query language designed to do for Web services what SQL did for relational databases. (Article courtesy of Redmond Developer News.) ...

XMLデータベース（以降、XMLDB）では、このSQLに該当するものとして XQuery（XQuery 1.0: An XML Query Language） がW3Cで標準化されており、2007年1月23日にXPath 2.0など関連する8つの仕様群を含め、勧告（Recommendation）となりました（W3Cのプレスリリース）。

The W3C grants Recommendation status to XQuery, the XML query language designed to do for Web services what SQL did for relational databases.

The W3C recommends XML for structuring data, and the task of making XML behave more like a relational database falls to the organization's XML Query working group.

IBM is preparing to advance the XQuery XML query language on two fronts: by submitting with Microsoft a test suite for industry consideration and by working with Oracle on a Java API for the ...

hi, i'm looking into whether xml and all its related technologies can be an alternative to relational databases, especially on the query side. i have only the slightest idea of xml, xpath, xslt ...

XQuery, according to Oracle, is important for querying arbitrary XML data sources and is expected to join SQL as a widely used query language.

They would allow collections of XML files on the Web to be queried like databases.