216
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ICDT
15 years 4 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 ...
106
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ICDT
15 years 4 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...
103
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ICDT
15 years 4 months ago
1995 ACM
We investigate and compare two forms of recursion on sets for querying nested collections. The rst one is called sri and it corresponds to sequential processing of data. The second...
91
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ICDT
15 years 4 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 ...
89
Voted
ICDT
15 years 4 months ago
1995 ACM  |
Database