VLDB
1990
ACM
14 years 3 months ago
1990
ACM
Non-monotonic knowledge evolutions and exceptions constitute a complex theoritical and practical problem. The state of the art shows a rich and surprising diversity of approaches....
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
Databaseindexing is a well studied problem. However, the advent of Hypertext databasesopensnew questionsin indexing. Searches are often demarcated by pointers between text items. ...
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
This paper presents an approach to maintaining consistency of object versions in multiversion database systems. In this approach a multiversion database is considered to be a set ...
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
In this paper we describe a new language for statistical data modelling, which offers a general framework for the representation of elementary and summarydata.Thereare threemain c...
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
ABSTRACT - In this paperwe describe the design, implementation, and performance of an incremental join facility that has been added as an extension to the Starburst extensible DBMS...
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
VLDB
1990
ACM
14 years 3 months ago
1990
ACM
In this paper, we present an efficient algorithm for managing replicated data. We impose a logical tree structure on the set of copies of an object. In a failurefree environment t...