16616 search results - page 215 / 3324 » Extending Extended Vacuity |
140
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STOC
1991
ACM
15 years 9 months ago
1991
ACM
We describe a new deterministic algorithm for the problem of constructing k-th
175
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VLDB
1991
ACM
15 years 9 months ago
1991
ACM
In order to cope efficiently with simple or complex queries as well as different application requirements (e.g., ad-hoc versus repetitive queries), a query optimizer ought to supp...
115
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SIGMOD
1987
ACM
15 years 9 months ago
1987
ACM
In this paper we discuss extensions to the conventional relatronal algebra to support transaction time We show that these extensions are applicable to hrstorlcal algebras that sup...
158
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VLDB
1987
ACM
15 years 9 months ago
1987
ACM
Severalmethodshavebeenproposedto compile recursive Datalog programs. The most well-known perform a rewriting of rules using MAGIC or PROBLEM predicates in order to push selections...