6650 search results - page 293 / 1330 » Mutating database queries |
174
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ADBIS
2000
Springer
15 years 9 months ago
2000
Springer
Queries involving aggregation are typical in a number of database research areas, such as data warehousing, global information systems and mobile computing. One of the main ideas ...
124
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DASFAA
2009
IEEE
15 years 11 months ago
2009
IEEE
In Deep Web data integration, some Web database interfaces express exclusive predicates of the form Qe = Pi(Pi ∈ P1, P2, . . . , Pm), which permits only one predicate to be selec...
142
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BIS
2008
15 years 6 months ago
2008
Deep web search requires a transformation between search keywords and semantically described and well-formed data structures. We approached this problem in our "In the Web of ...
251
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ICDT
2009
ACM
16 years 5 months ago
2009
ACM
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
140
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ICPR
2002
IEEE
16 years 5 months ago
2002
IEEE
GraphGrep is an application-independent method for querying graphs, finding all the occurrences of a subgraph in a database of graphs. The interface to GraphGrep is a regular expr...