Jackson
发表于 2025-3-21 17:53:39
书目名称Deductive and Object-Oriented Databases影响因子(影响力)<br> http://figure.impactfactor.cn/if/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases影响因子(影响力)学科排名<br> http://figure.impactfactor.cn/ifr/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases网络公开度<br> http://figure.impactfactor.cn/at/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases网络公开度学科排名<br> http://figure.impactfactor.cn/atr/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases被引频次<br> http://figure.impactfactor.cn/tc/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases被引频次学科排名<br> http://figure.impactfactor.cn/tcr/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases年度引用<br> http://figure.impactfactor.cn/ii/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases年度引用学科排名<br> http://figure.impactfactor.cn/iir/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases读者反馈<br> http://figure.impactfactor.cn/5y/?ISSN=BK0264517<br><br> <br><br>书目名称Deductive and Object-Oriented Databases读者反馈学科排名<br> http://figure.impactfactor.cn/5yr/?ISSN=BK0264517<br><br> <br><br>
连系
发表于 2025-3-22 00:04:06
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迁移
发表于 2025-3-22 01:04:03
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毕业典礼
发表于 2025-3-22 04:33:48
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惩罚
发表于 2025-3-22 11:30:53
https://doi.org/10.1007/978-3-476-03675-9considered the incremental maintenance of deductive views defined by expensive database queries, including the transitive closure query. An interesting approach is to use only first-order queries in this maintenance, after small changes (e.g. one tuple insertions and deletions) to base relations. In
Diastole
发表于 2025-3-22 15:02:07
Das methodische Vorgehen im Überblickpe extents or classes) themselves need not be materialized. In exchange, the system maintains (redundant) views of the application data that help to minimize query response time. We understand views as functions of database objects and examine algebraic properties of these functions, in particular l
Diastole
发表于 2025-3-22 17:54:13
Zusammenfassung – Diskussion – Ausblickble using additional data together with the views. For instance, one can replicate auxiliary views of the base relations at the site where the views are materialized to ensure self-maintenance of the views. However, the previous approaches often lead to the replication of the entire base relations,
协迫
发表于 2025-3-22 23:35:48
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形上升才刺激
发表于 2025-3-23 04:32:45
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人类的发源
发表于 2025-3-23 07:57:30
Was ist der ‘ästhetische Vektor’?er attributes. This approach minimizes the complexity of the schema. We propose a formalism in which rules are divided into two classes: “Defining rules” specify the existence of tuples in the relation, together with some of their attributes. “Refining rules” specify derived attributes of tuples tha