VLDB
1995
ACM
13 years 11 months ago
1995
ACM
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering and query rewrite (JOQR) followed by parallelization. We focus on t...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
Previous studies on mining association rules find rules at single concept level, however, mining association rules at multiple concept levels may lead to the discovery of more spe...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
Several recent trends have changed the usage and users of schemas beyond those of a database administrator’s tool for describing database contents. Distribution of computing pow...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
We provide several new sampling-based estimators of the number of distinct values of an attribute in a relation. We compare these new estimators to estimators from the database an...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
In this paper we introduce generalized projections (GPs), an extension of duplicateeliminating projections, that capture aggregations, groupbys, duplicate-eliminating projections ...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
Applications in finance and telecommunications (intelligent network, network management, mobile computing) cause renewed interest in distributed and replicated data management. Si...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
Query processing is one of the most, critical issues in Object-Oriented DBMSs. Extensible opt,imizers with efficient, search strategies require a cost model to select the most eff...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
New demandsare put on query processing in Object-Oriented(00) databasesto provide efficient andrelationally completequery languages. A flexible 00 data model requires overloading ...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM