6 search results - page 1 / 2 » icdt 1995 |
ICDT
1995
ACM
13 years 8 months ago
1995
ACM
ICDT
1995
ACM
13 years 8 months ago
1995
ACM
Abstract. Extension of the relational database model to represent complex data has been a focus of much research in recent years. At the same time, an alternative extension of the ...
ICDT
1995
ACM
13 years 8 months ago
1995
ACM
Partial information in databases can arise when information from several databases is combined. Even if each database is complete for some \world", the combined databases wil...
ICDT
1995
ACM
13 years 8 months ago
1995
ACM
A tuple t1 of relation R subsumes tuple t2 of R, with respect to a query Q if for every database, tuple t1 derives all, and possibly more, answers to query Q than derived by tuple ...
ICDT
1995
ACM
13 years 8 months ago
1995
ACM
Following results are sketched in this extended abstract: (1) Datalog recursive programs where each rule has at most one subgoal called unit recursions are shown to be bounded, wit...