XQuery Reference XQuery and XPath 2.0 shares the same data model, functions, and syntax.XQuery Locations
XQuery shares the same data model as XPath 2.0
XPath LocationsXQuery Operators
XQuery shares the same operators as XPath 2.0
XPath OperatorsXQuery Functions
XQuery shares the same functions as XPath 2.0
XPath FunctionsXQuery Data Types
XQuery shares the same data types as XSD (XML Schema 1.0)
XSD String
XSD Date

XSD Numeric
XSD Misc