2987 search results - page 185 / 598 » Multiobjective Query Optimization |
117
Voted
SIGMOD
2002
ACM
16 years 1 months ago
2002
ACM
Physical database design is important for query performance in a shared-nothing parallel database system, in which data is horizontally partitioned among multiple independent node...
151
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SIGMOD
2001
ACM
16 years 1 months ago
2001
ACM
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...
128
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SIGMOD
1996
ACM
15 years 5 months ago
1996
ACM
While much recent research has focussed on extending databases beyond the traditional relational model, relatively little has been done to develop database tools for querying data...
136
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PVLDB
2010
15 years 5 days ago
2010
Many DBMS products in the market provide built in encryption support to deal with the security concerns of the organizations. This solution is quite effective in preventing data ...
111
Voted
VLDB
1994
ACM
15 years 5 months ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...