小说
发表于 2025-3-30 11:31:18
Gordon Slethaug,Jesilin Manjuladomain concept hierarchy is constructed on top of a numerical domain to handle imprecise data, while dependencies between database attributes are derived for incomplete information. An application of the techniques for processing queries under network partitioning is also discussed.
ALE
发表于 2025-3-30 15:41:26
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河流
发表于 2025-3-30 19:59:49
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consent
发表于 2025-3-30 21:21:57
Neighborhood/conceptual query answering with imprecise/incomplete data,domain concept hierarchy is constructed on top of a numerical domain to handle imprecise data, while dependencies between database attributes are derived for incomplete information. An application of the techniques for processing queries under network partitioning is also discussed.
Indigence
发表于 2025-3-31 03:56:37
Gralf-Peter Calliess,Stephan von Harder constraints are business model integrity constraints and rules captured in the business analysis. They specify existence and value relations among predicates. The constraints are specified in a proposed declarative language based on First Order Logic. They can then be translated into the relational algebra and SQL.
NOTCH
发表于 2025-3-31 06:41:48
https://doi.org/10.1007/978-3-319-02570-4 dependency for temporal databases that include object-identity. The proposed extensions are used to compare object-oriented modeling and Extended Entity-Relationship modeling in structural and temporal terms.
增强
发表于 2025-3-31 09:56:41
https://doi.org/10.1057/978-1-137-58644-5tions to model various notions of time for different applications. We discuss the temporal semantics of inheritance by defining a lifespan behavior on objects in a collection. Finally, we give an elaborative example and show that temporal objects can be queried without adding any extra construct to the underlying query language.
Postulate
发表于 2025-3-31 13:43:16
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Fibrinogen
发表于 2025-3-31 19:36:15
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cancer
发表于 2025-4-1 01:28:16
Functional dependencies generalized for temporal databases that include object-identity, dependency for temporal databases that include object-identity. The proposed extensions are used to compare object-oriented modeling and Extended Entity-Relationship modeling in structural and temporal terms.