SQL

http://www.w3schools.com/xsl/

http://csharp.net-tutorials.com/xml/using-xpath-with-the-xmldocument-class/

XPath (XML Path Language) is a query language used to identify a set of nodes within an XML document. XPath can be used to compute values such as strings, numbers, or Boolean values from an XML document. It supports many different expression types.

Avinash please once go through below link. You will get XPath details with examples.

http://programming4.us/database/2576.aspx

If this is helpful for you then please accept my Answer.

Krishna Rajput Singh11y ago

XPath, the XML Path Language, is a query language for selecting nodes from an XML document. In addition, XPath may be used to compute values (e.g., strings, numbers, or Boolean values) from the content of an XML document. XPath was defined by the World Wide Web Consortium (W3C).

https://msdn.microsoft.com/en-us/library/ms256086(v=vs.110).aspx