51 search results - page 9 / 11 » Rewriting and Evaluating Tree Queries with XPath |
ICDT
2011
ACM
12 years 10 months ago
2011
ACM
Distributed data management systems consist of peers that store, exchange and process data in order to collaboratively achieve a common goal, such as evaluate some query. We study...
SIGMOD
2007
ACM
14 years 6 months ago
2007
ACM
This paper investigates a class of transform queries proposed by XQuery Update [6]. A transform query is defined in terms of XML update syntax. When posed on an XML tree T, it ret...
ICDE
2007
IEEE
14 years 8 months ago
2007
IEEE
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
CIKM
2008
Springer
13 years 8 months ago
2008
Springer
Query processing techniques for XML data have focused mainly on tree-pattern queries (TPQs). However, the need for querying XML data sources whose structure is very complex or not...
VLDB
2005
ACM
14 years 1 days ago
2005
ACM
Many enterprise applications prefer to store XML data as a rich data type, i.e. a sequence of bytes, in a relational database system to avoid the complexity of decomposing the dat...