XML data warehouse: Modelling and querying

被引：0
|
作者：
Pokorny, J [1 ]
机构：
[1] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic
来源：
DATABASES AND INFORMATION SYSTEMS II | 2002年
关键词：
XML; data warehouse; dimension; XML-star schema; XML-referential integrity; semijoin;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A large amount of heterogeneous information is now available in enterprises. Some their data sources are repositories of XML data or they are viewed as XML data independently on their inner implementation. In this paper, we study the foundations of XML data warehouses. We adapt the traditional star schema with explicit dimension hierarchies for XML environment. We propose the notion of XML-referential integrity for handling XML-dimension hierarchies. For querying XML data warehouses, we introduce a semijoin operation based on approximate matching XML data and discuss its effective evaluation.
引用
收藏
页码：67 / 80
页数：14
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