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» Materialized Views and Data Warehouses
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SIGMOD
1997
ACM
160views Database» more  SIGMOD 1997»
15 years 4 months ago
Improved Query Performance with Variant Indexes
: The read-mostly environment of data warehousing makes it possible to use more complex indexes to speed up queries than in situations where concurrent updatesare present. The curr...
Patrick E. O'Neil, Dallan Quass
VLDB
2001
ACM
168views Database» more  VLDB 2001»
16 years 1 days ago
Answering queries using views: A survey
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessin...
Alon Y. Halevy
ESA
2005
Springer
113views Algorithms» more  ESA 2005»
15 years 5 months ago
Online View Maintenance Under a Response-Time Constraint
Abstract. A materialized view is a certain synopsis structure precomputed from one or more data sets (called base tables) in order to facilitate various queries on the data. When t...
Kamesh Munagala, Jun Yang 0001, Hai Yu
VLDB
1999
ACM
89views Database» more  VLDB 1999»
15 years 4 months ago
Physical Data Independence, Constraints, and Optimization with Universal Plans
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
Alin Deutsch, Lucian Popa, Val Tannen
OTM
2007
Springer
15 years 6 months ago
Modeling Data Federations in ORM
: Two major problems in constructing data federations (for example, data warehouses and database federations) concern achieving and maintaining consistency and a uniform representa...
Herman Balsters, Terry A. Halpin