721 search results - page 75 / 145 » Supporting top-k join queries in relational databases |
ICDT
2007
ACM
15 years 4 months ago
2007
ACM
Abstract. Information concerning the origin of data (that is, its provenance) is important in many areas, especially scientific recordkeeping. Currently, provenance information mu...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
Sovereign information sharing allows autonomous entities to compute queries across their databases in such a way that nothing apart from the result is revealed. We describe an imp...
195
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ICDE
2003
IEEE
15 years 11 months ago
2003
IEEE
The XML Wrapper is a new feature of the federated database capabilities of DB2/UDB v8. It enables users and applications to issue SQL queries against XML data from a variety of so...
157
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
We study the problem of answering XPATH queries using multiple materialized views. Despite the efforts on answering queries using single materialized view, answering queries using ...
160
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ICDE
2007
IEEE
15 years 11 months ago
2007
IEEE
Recently there has been increasing interest in the development of progress indicators for SQL queries. In this paper we present a lightweight online framework for this problem. Ou...