XQuery tutorial

May 28, 2021 XQuery

XQuery, or XML Query, is used to extract information from a class XML (a subset of the standard common tag language) document.

XQuery's role in XML is similar to SQL's role in databases.

XQuery is designed to query XML data.

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XQuery instance

for $x in doc("books.xml")/bookstore/book
where $x/price>30
order by $x/title
return $x/title

In W3CSchool, we provide a complete reference manual for all operators, built-in functions, and data types in XQuery 1.0.