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File: Data.xml
<order>
<car model="A">
<id>0001</id>
<name language="en">name 1</name>
<colorChoices>navy black</colorChoices>
</car>
<car model="B">
<id>0002</id>
<name language="en">name 2</name>
</car>
<car model="B">
<id>0003</id>
<name language="en">name 3</name>
</car>
<car model="C">
<id>0004</id>
<name language="en">name 4</name>
<colorChoices>white gray</colorChoices>
<desc>Our <i>favorite</i> shirt!</desc>
</car>
</order>
File: prices.xml
<prices>
<priceList effDate="2006-11-15">
<prod id="0001">
<price currency="USD">29.99</price>
<discount type="CLR">10.00</discount>
</prod>
<prod id="0002">
<price currency="USD">69.99</price>
</prod>
<prod id="0003">
<price currency="USD">39.99</price>
<discount type="CLR">3.99</discount>
</prod>
</priceList>
</prices>
File: Query.xquery
for $car in doc("Data.xml")//car
return <car id="{$car/id}">{
attribute price
{for $price in doc("prices.xml")//prices/priceList/prod
where $car/id = $price/@id
return $price/price}
}</car>
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