5221 search results - page 205 / 1045 » An On-line Problem Database |
158
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ICDE
2007
IEEE
16 years 25 days ago
2007
IEEE
In this paper, we study the problem of auditing a batch of SQL queries: given a set of SQL queries that have been posed over a database, determine whether some subset of these quer...
160
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EDBT
2009
ACM
15 years 10 months ago
2009
ACM
We investigate the problem of refining SQL queries to satisfy cardinality constraints on the query result. This has applications to the many/few answers problems often faced by da...
189
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ICDT
2012
ACM
13 years 9 months ago
2012
ACM
The problems of query containment, equivalence, and minimization are recognized as very important in the context of query processing, specifically of query optimization. In their...
149
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VLDB
1992
ACM
15 years 10 months ago
1992
ACM
New challenges to the database field brought about by the rapidly growing area of wireless personal communication are presented. Preliminary solutions to two of the major problems...
161
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IDA
2008
Springer
15 years 6 months ago
2008
Springer
Abstract. We address the problem of matching imperfectly documented schemas of data streams and large databases. Instancelevel schema matching algorithms identify likely correspond...