Written By: オータム
Xpriori - home to NeoCore XMS XML database management system
https://www.xpriori.com/
Xpriori (xmldb.jp)
https://www.xmldb.jp/
The Official XQuery FAQ
https://www.stylusstudio.com/xquery/xquery_faq.html
XQuery入門
https://www18.tok2.com/home/koumori27/xml/xql/xql_menu.html
XQuery 1.0: An XML Query Language
W3C Working Draft 04 April 2005
https://www.w3.org/TR/xquery/