Sciweavers

86 search results - page 1 / 18
» XML query optimization in the presence of side effects
Sort
View
SIGMOD
2008
ACM
143views Database» more  SIGMOD 2008»
14 years 5 months ago
XML query optimization in the presence of side effects
The emergence of database languages with side effects, notably for XML, raises significant challenges for database compilers and optimizers. In this paper, we extend an algebra fo...
Giorgio Ghelli, Nicola Onose, Kristoffer Hø...
EDBTW
2006
Springer
13 years 9 months ago
XQuery!: An XML Query Language with Side Effects
Giorgio Ghelli, Christopher Re, Jérôm...
VLDB
2005
ACM
175views Database» more  VLDB 2005»
13 years 10 months ago
Query Translation from XPath to SQL in the Presence of Recursive DTDs
The interaction between recursion in XPATH and recursion in DTDs makes it challenging to answer XPATH queries on XML data that is stored in an RDBMS via schema-based shredding. We...
Wenfei Fan, Jeffrey Xu Yu, Hongjun Lu, Jianhua Lu,...
ICDE
2005
IEEE
124views Database» more  ICDE 2005»
14 years 6 months ago
XML Views as Integrity Constraints and their Use in Query Translation
The SQL queries produced in XML-to-SQL query translation are often unnecessarily complex, even for simple input XML queries. In this paper we argue that relational systems can do ...
Rajasekar Krishnamurthy, Raghav Kaushik, Jeffrey F...
SIGMOD
2004
ACM
198views Database» more  SIGMOD 2004»
14 years 5 months ago
Secure XML Querying with Security Views
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
Wenfei Fan, Chee Yong Chan, Minos N. Garofalakis