Multivalued dependency based on tree tuples in XML
Shen Bing-hong · Journal of Yanshan University · 2006
XML schema design is the key of databases design. Similarly to the relational database, it is important to research onthe reasons that generate the update anomalies and methods which avoid update anomalies and redundancies. This paper has con-ducted the research to multivalued dependence in XML documents on the schema level that is quite different from Vincent et al..The method of schema design of XML documents is analysed. Tree tuple approach is improved and concepts of XML tree, treetuples and etc are given. Then based on DTD, the definition of multivalued dependencies inXML is proposed. The axiomatizationsand implications problems for XMVD are analysed and several other issues related to the ones addressed in this paper that warrantfurther investigation are proposed.