It is query language which is made for solved out the query related to XML document.Using them we can fetch the data from different database.It is a subset of Xpath.
Some features of XQuery are given below:
1.XQuery is independent with logical and physical data.
2.It is a Declarative.
3.It is an High level query language.
4.This query language is free from side-effect.
5.It is a strong type query language.