6846 search results - page 380 / 1370 » Querying a summary of database |
219
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IDEAS
2009
IEEE
16 years 1 months ago
2009
IEEE
In this paper, we present our work on evaluating the skyline algorithms BNL, SFS, and a variant of LESS in PostgreSQL. It is well known that the performance of skyline queries is ...
169
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IDEAS
2005
IEEE
16 years 11 days ago
2005
IEEE
We introduce and study a new class of queries that we refer to as ACMA (arithmetic constraints on multiple attributes) queries. Such combinatorial queries require the simultaneous...
165
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DEXA
1995
Springer
15 years 10 months ago
1995
Springer
- In order to accomplish independence on the logical data organization, a relational DBMS must be capable of interpreting query language sentences which reference attributes belong...
189
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ISCI
2007
15 years 6 months ago
2007
In an object-relational database management system, a query optimizer requires users to provide cost models of userdefined functions. The traditional approach is analytical, that...
175
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SIGMOD
2011
ACM
14 years 9 months ago
2011
ACM
We are witnessing an exciting revival of interest in recursive Datalog queries in a variety of emerging application domains such as data integration, information extraction, netwo...