415 search results - page 6 / 83 » Efficient Processing of Relational Queries with Sum Constrai... |
ICDE
2005
IEEE
14 years 8 months ago
2005
IEEE
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 ...
RR
2007
Springer
14 years 1 months ago
2007
Springer
For the foreseeable future, most data will continue to be stored in relational databases. To work with these data in ontology-based applications, tools and techniques that bridge t...
ICDE
2007
IEEE
14 years 8 months ago
2007
IEEE
Logical constraints, (e.g., 'phone numbers in toronto can have prefixes 416, 647, 905 only'), are ubiquitous in relational databases. Traditional integrity constraints, ...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Efficiently querying RDF [1] data is being an important factor in applying Semantic Web technologies to real-world applications. In this context, many efforts have been made to st...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...