654 search results - page 12 / 131 » Complexity of Answering Queries Using Materialized Views |
135
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DBA
2006
15 years 4 months ago
2006
In order to facilitate query processing, the information contained in data warehouses is typically stored as a set of materialized views. Deciding which views to materialize prese...
195
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SIGMOD
2007
ACM
16 years 3 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...
125
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VLDB
2001
ACM
15 years 7 months ago
2001
ACM
In this paper we focus on the following problem in information management: given a large collection of recorded information and some knowledge of the process that is generating th...
PODS
2002
ACM
16 years 3 months ago
2002
ACM
161
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DOLAP
1999
ACM
15 years 7 months ago
1999
ACM
In this paper, we describe the design of a data warehousing system for an engineering company ‘R’. This system aims to assist users in retrieving data for business analysis in...