196
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VLDB
15 years 8 months ago
1991 ACM 
Multi-level transactions are a variant of open nested transactions in which the subtransactions correspond to operations at different levels of a layered system architecture. The ...
181
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ICDE
15 years 8 months ago
1991 IEEE 
— Constraints play an important role in the efficient query evaluation in deductive databases. In this paper, constraint-based query evaluation in deductive databases is investi...
174
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DOOD
15 years 8 months ago
1991 Springer 
This paper examines the problem of adding non-deterministic constructs to a declarative database language based on Horn Clause Logic. We revise a previously proposed approach, the...
173
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DASFAA
15 years 8 months ago
1991 IEEE 
: We present a new dynamic hashedfile organization that solvesmostproblems associatedwith the directory of the grid file proposed by Nievergelt et al. Our schemeis a multilevel ext...
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