1445 search results - page 83 / 289 » XPath query containment |
CORR
2002
Springer
14 years 9 months ago
2002
Springer
We describe a meta-querying system for databases containing queries in addition to ordinary data. In the context of such databases, a meta-query is a query about queries. Represen...
SIGMOD
2003
ACM
15 years 10 months ago
2003
ACM
Database queries often take the form of correlated SQL queries. Correlation refers to the use of values from the outer query block to compute the inner subquery. This is a conveni...
CORR
2008
Springer
14 years 10 months ago
2008
Springer
perception of domain concepts. We have run this experiment on the 367 645 English abstracts of PASCAL 2005-2006 bibliographic database (http://www.inist.fr) and compared the struct...
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
We have developed a system to process database queries over composed data providing web services. The queries are transformed into execution plans containing an operator that invok...
IDEAS
2007
IEEE
15 years 4 months ago
2007
IEEE
In this paper we study the problem of deciding whether a regular path query over views in data-integration systems can be re-expressed without recursion. The problem becomes chall...