强化
发表于 2025-3-28 18:07:02
Conceptual relations between databases transformed under join and projection,queries and of allowing equal (or corresponding) updates. After discussing some basic properties of the concepts introduced, the case in which conceptual relations (inclusion or equivalence) among data bases may be proved by means of transformations based on projections and joins is examined in deta
陪审团每个人
发表于 2025-3-28 20:13:19
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免除责任
发表于 2025-3-29 00:27:08
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SNEER
发表于 2025-3-29 06:35:38
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Neutral-Spine
发表于 2025-3-29 08:31:19
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chandel
发表于 2025-3-29 12:10:21
On and/or schemes,cision trees and combinational networks, are naturally embedded in the and/or language. These observations pose some interesting questions for further research. As a first result in the metatheory of and/or schemes, we prove a normal form theorem showing that with the addition of “auxiliary variable
Classify
发表于 2025-3-29 17:42:44
tem specimens, and the validation of changes in animal models of schizophrenia. Recently, several risk genes for schizophrenia have been identified, providing specific targets for the development of diagnostic tests and therapeutic interventions..In this chapter, we review basic concepts of the clin
Self-Help-Group
发表于 2025-3-29 23:42:03
Dines Bjørnerslähmung durch Diabetes oder chronischen Alkoholabusus. Deutlich zugenommen haben in den letzten Jahren die . einzelner peripherer Nerven, wie Abb. 86 (aus .) zeigt. Mit welcher Häufigkeit die Nerven betroffen sind, ist aus Abb. 87 (.) zu erkennen. Diese Zunahme steht in Zusammenhang mit der heute a
paradigm
发表于 2025-3-30 02:23:09
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舔食
发表于 2025-3-30 05:29:41
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