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SIGMOD
1996
ACM
13 years 9 months ago
1996
ACM
Detecting and representing changes to data is important for active databases, data warehousing, view maintenance, and version and configuration management. Most previous work in c...
SIGMOD
1996
ACM
13 years 9 months ago
1996
ACM
Decision support applications involve complex queries on very large databases. Since response times should be small, query optimization is critical. Users typically view the data ...
SIGMOD
1996
ACM
13 years 9 months ago
1996
ACM
Object-Relational and Object-Oriented DBMSs allow users to invoke time-consuming ("expensive") methods in their queries. When queries containing these expensive methods a...
SIGMOD
1996
ACM
13 years 9 months ago
1996
ACM
The constructionof high-performance databasesystems that combine the best aspects of the relational and object-oriented approaches requires the design of client-server architectur...
SIGMOD
1996
ACM
13 years 9 months ago
1996
ACM
This paper introduces bifocal sampling, a new technique for estimating the size of an equi-join of two relations. Bifocal sampling classi es tuples in each relation into two group...