1008 search results - page 49 / 202 » Logic and Databases |
TIME
2003
IEEE
14 years 1 months ago
2003
IEEE
In bitemporal databases, current facts and transaction states are modelled using a special value to represent the current time (such as a minimum or maximum timestamp or NULL). Pr...
PODS
2010
ACM
13 years 9 months ago
2010
ACM
We study highly expressive query languages such as datalog, fixpoint, and while-languages on probabilistic databases. We generalize these languages such that computation steps (e....
SEBD
2003
13 years 9 months ago
2003
Nowadays, the vast volume of collected digital data obliges us to employ processing methods like pattern recognition and data mining in order to reduce the complexity of data manag...
DAGSTUHL
1998
13 years 9 months ago
1998
After brie y reviewing the basic notions and terminology of active rules and relating them to production rules and deductive rules, respectively, we survey a number of formal appro...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
We present the architectural design and recent performance optimizations of a state of the art commercial database replication technology provided in Oracle Streams. The underlying...