2223 search results - page 231 / 445 » Query Optimization in an OODBMS |
153
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VLDB
1994
ACM
15 years 8 months ago
1994
ACM
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering followed by parallelization. We focus on the parallelization phase a...
210
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VLDB
2007
ACM
16 years 4 months ago
2007
ACM
Data Warehouses and Business Intelligence (BI) applications are the top two priorities for CIO/CTOs (Celent report on December 14, 2005). A data warehouse IT infrastructure needs ...
209
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
118
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DCC
2007
IEEE
16 years 4 months ago
2007
IEEE
Data synopsis is a lossy compressed representation of data stored into databases that helps the query optimizer to speed up the query process, e.g. time to retrieve the data from ...
126
Voted
ICDM
2008
IEEE
15 years 11 months ago
2008
IEEE
Selecting promising queries is the key to effective active learning. In this paper, we investigate selection techniques for the task of learning an equivalence relation where the ...