SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
A warehouse is a repository of integrated information drawn from remote data sources. Since a warehouse e ectively implements materialized views, we must maintain the views as the...
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
A number of execution strategies for parallel evaluation of multi-join queries have been proposed in the literature; their performance was evaluated by simulation. In this paper w...
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
Implementing crash recovery in an Object-Oriented Database System (OODBMS) raises several challenging issues for performance that are not present in traditional DBMSs. These perfo...
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
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...
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...
SIGMOD
1995
ACM
14 years 4 months ago
1995
ACM
In a digital library system, documents are available in digital form and therefore are more easily copied and their copyrights are more easily violated. This is a very serious pro...