Article:		Processing RSS
Subject:		XQuery and XSLT
Date:		2003-04-12 08:17:13
From:		Michael Champion
As best I understand it, and for situations that don't involve XQuery's deeper support for XML Schema data types, XQuery and XSLT are more or less equivalent in functionality. I believe that all the use cases in the XQuery specification can be implemented with either. So why are both needed? Not everyone would agree that they are, and both are (AFAIK) Turing-complete programming languages. The best explanation I can offer is that each is optimized for the needs of different audiences. XSLT tends to be somewhat easier for document-oriented applications, XQuery somewhat easier for data-oriented applications, especially by those coming from a SQL background and those who need a "native XML programming language" rather than a "template-driven XML transformation" tool.

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