VLDB
1989
ACM
14 years 3 months ago
1989
ACM
An Event-Join combinestemporaljoin and outerjoin properties into a single operation. It is mostly used to group temporal attributes of an entity into a single relation. In this pa...
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
Fuzzy set theory represents a uniform framework for extending the relational database model to han-, dle imprecision of information found in the real world. None of the existing p...
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
with a full abstract specification of the data-types involved and a multi-level architecture similar to that of a DBMS. A related question is the kind of model that is most suitabl...
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
paper is concerned with ways of specifying situations and evaluating them efficiently. The techniques described in this paper were developed as part of the HiPAC (High Performance...
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
A method is described for actively interfacing an Object-Oriented Database Management System (OODBMS) to application pre grams. The method, called a database monitor, observes how...
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
Deductive conceptualmodels(DCMs) aim at providing a complete specification of information systems,expressing only its logic component.It hasbeenshownthatDCMs have some advantagesw...
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
In this paper. we utilize intervals for unknown values in incompleterelational databases.We usetablesto representunknown relations. First, we define three partial tuple types in a...
VLDB
1989
ACM
14 years 3 months ago
1989
ACM
