XML functional dependencies
Chuanbao Wu · Journal of Qiqihar University · 2006
Functional dependencies play a fundamental role in relational databases where it was used in integrity en forcement and in database design. Similarly, these constraints will play a fundamental role in XML and functional de pendencies in XML have been defined. In this paper we present a kind definition of functional dependencies in XML based on tree unary and at the same time We also give reference rules about the implication of FD in XML and prove their validity.