File: Data.xml
<order xmlns="http://java2s.com/cat">
<id>1446</id>
<prod:car xmlns:prod="http://java2s.com/prod">
<prod:id>0002</prod:id>
<prod:name language="en">name 2</prod:name>
</prod:car>
</order>
File: Query.xquery
declare default element namespace "http://java2s.com/cat";
declare namespace rep = "http://java2s.com/report";
declare namespace prod = "http://java2s.com/prod";
<rep:report> {
doc("Data.xml")/order/prod:car
} </rep:report>
Output:
<?xml version="1.0" encoding="UTF-8"?>
<rep:report xmlns:rep="http://java2s.com/report">
<prod:car xmlns:prod="http://java2s.com/prod" xmlns="http://java2s.com/cat">
<prod:id>0002</prod:id>
<prod:name language="en">name 2</prod:name>
</prod:car>
</rep:report>
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