1286 search results - page 89 / 258 » Scalable Package Queries in Relational Database Systems |
177
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ICDE
2000
IEEE
15 years 11 months ago
2000
IEEE
In information-integration systems, sources may have diverse and limited query capabilities. In this paper we show that because sources have restrictions on retrieving their infor...
EDBT
2010
ACM
15 years 5 months ago
2010
ACM
There are two broad approaches to query evaluation over probabilistic databases: (1) Intensional Methods proceed by manipulating expressions over symbolic events associated with u...
177
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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
The skyline operator returns from a set of multi-dimensional objects a subset of superior objects that are not dominated by others. This operation is considered very important in ...
72
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DBPL
1999
Springer
15 years 2 months ago
1999
Springer
We consider IES(SQL), the incremental evaluation system over an SQL-like language with grouping, arithmetics, and aggregation. We show that every second order query is in IES(SQL) ...
EUSFLAT
2001
14 years 11 months ago
2001
The Vague Query System (VQS) due to Kiing and Palkoska is an add-on to relational databases which is able to suggest alternative query results in case that an exact query fails. T...