IDS
1994
13 years 11 months ago
1994
In 1989, and again in 1993, panels of database researchers were surveyed about which research areas they considered promising. In both cases, the area of user interfaces was chose...
IDS
1994
13 years 11 months ago
1994
IDS
1994
13 years 11 months ago
1994
The Concept of Populated Information Terrains (PITS) aims to extend database technology with key ideas from the new fields of Virtual Reality (VR) and Computer Supported Cooperativ...
HPTS
1993
13 years 11 months ago
1993
System developments and research on parallel query processing have concentrated either on "Shared Everything" or "Shared Nothing" architectures so far. While t...
HPTS
1993
13 years 11 months ago
1993
Elements of transaction processing become more and more accepted as a base for general purpose distributed computing.We have developed an action concept with an extended functiona...
ER
1994
Springer
13 years 11 months ago
1994
Springer
Abstract. As information systems are increasingly being called upon to play vital roles in organizations, conceptual modelling techniques need to be extended to relate information ...
ER
1994
Springer
13 years 11 months ago
1994
Springer
ER
1994
Springer
13 years 11 months ago
1994
Springer
A normal form object-oriented entity relationship (OOER) diagram is presented to address a set of 00 data modelling issues, viz. the inability to judge the quality of an 00 schema,...
ER
1994
Springer
13 years 11 months ago
1994
Springer
A logical database schema, e.g. a relational one, is an implementation of a speci cation, e.g. an entity-relationship diagram. Upcoming new data models and the necessity of seamle...
EDBT
1994
ACM
13 years 11 months ago
1994
ACM
Abstract. Good estimates of join result sizes are critical for query optimization in relational database management systems. We address the problem of incrementally obtaining accur...