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» Chase of Recursive Queries
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PPDP
2010
Springer
13 years 5 months ago
Deriving predicate statistics in datalog
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
Senlin Liang, Michael Kifer
PODS
2000
ACM
137views Database» more  PODS 2000»
13 years 12 months ago
Query Containment for Data Integration Systems
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
Todd D. Millstein, Alon Y. Levy, Marc Friedman
ICDE
2010
IEEE
266views Database» more  ICDE 2010»
14 years 7 months ago
Provenance Browser: Displaying and Querying Scientific Workflow Provenance Graphs
Abstract-- This demonstration presents an interactive provenance browser for visualizing and querying data dependency (lineage) graphs produced by scientific workflow runs. The bro...
Bertram Ludäscher, Manish Kumar Anand, Shawn ...
EXTREME
2004
ACM
14 years 28 days ago
A Simple Proof for the Turing-Completeness of XSLT and XQuery
The World Wide Web Consortium recommends both XSLT and XQuery as query languages for XML documents. XSLT, originally designed to transform XML into XSL-FO, is nowadays a fully gro...
Stephan Kepser
ICDE
2008
IEEE
142views Database» more  ICDE 2008»
14 years 8 months ago
An Inflationary Fixed Point Operator in XQuery
ct The backbone of the XML data model, namely ordered, unranked trees, is inherently recursive and it is natural to equip the associated languages with constructs that can query su...
Loredana Afanasiev, Torsten Grust, Maarten Marx, J...