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SIGMOD
1995
ACM
116views Database» more  SIGMOD 1995»
9 years 2 months ago
Incremental Maintenance of Views with Duplicates
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...
Timothy Griffin, Leonid Libkin
CIS
2004
Springer
9 years 2 months ago
Utilizing Staging Tables in Data Integration to Load Data into Materialized Views
rces. A data warehouse can be abstractly seen as a set of materialized views. Selecting views for materialization in a data warehouse is one of the most important decisions making ...
Ahmed Ejaz, Kenneth Revett
DBPL
1997
Springer
90views Database» more  DBPL 1997»
9 years 3 months ago
Implementing Incremental View Maintenance in Nested Data Models
Previous research on materialized views has primarily been in the context of flat relational databases--materialized views defined in terms of one or more flat relations. This pape...
Akira Kawaguchi, Daniel F. Lieuwen, Inderpal Singh...
VLDB
1999
ACM
89views Database» more  VLDB 1999»
9 years 3 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
DEXAW
1998
IEEE
83views Database» more  DEXAW 1998»
9 years 3 months ago
Programming Views for Mobile Database Clients
Within a database mobile environment, cached data on mobile clients can take the form of materialized views. In order to e ciently maintain such materialized views while taking in...
Susan Weissman Lauzac, Panos K. Chrysanthis
DEXAW
1998
IEEE
126views Database» more  DEXAW 1998»
9 years 3 months ago
An Extended Query Reformulation Technique Using Materialized Views
Materialized views offer opportunities for significant performance gain in query evaluation by providing fast access to pre-computed data. The question of when and how to use a ma...
Jae-young Chang, Sang-goo Lee
ER
1999
Springer
155views Database» more  ER 1999»
9 years 3 months ago
Detecting Redundancy in Data Warehouse Evolution
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over a set of remote data sources. A DW is intended to satisfy a set of queries. The views materi...
Dimitri Theodoratos
DAWAK
1999
Springer
9 years 3 months ago
Dynamic Data Warehouse Design
A data warehouse DW can be seen as a set of materialized views de ned over remote base relations. When a query is posed, it is evaluated locally, using the materialized views, wi...
Dimitri Theodoratos, Timos K. Sellis
DOLAP
1999
ACM
9 years 3 months ago
Design and Selection of Materialized Views in a Data Warehousing Environment: A Case Study
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...
Goretti K. Y. Chan, Qing Li, Ling Feng
SIGMOD
2000
ACM
161views Database» more  SIGMOD 2000»
9 years 3 months ago
Answering Complex SQL Queries Using Automatic Summary Tables
We investigate the problem of using materialized views to answer SQL queries. We focus on modern decision-support queries, which involve joins, arithmetic operations and other (po...
Markos Zaharioudakis, Roberta Cochrane, George Lap...
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