排斥 发表于 2025-3-23 13:00:51
Negation and aggregates in recursive rules: the ,++ approach,rent research in deductive databases. In this paper, we present a solution that combines generality with efficiency, as demonstrated by its implementation in the new .++ system. A novel and general treatment of set aggregates, allowing for user-defined aggregates, is also presented.不自然 发表于 2025-3-23 16:38:31
http://reply.papertrans.cn/27/2646/264516/264516_12.png啮齿动物 发表于 2025-3-23 19:02:32
http://reply.papertrans.cn/27/2646/264516/264516_13.pnginchoate 发表于 2025-3-24 01:19:22
http://reply.papertrans.cn/27/2646/264516/264516_14.png成绩上升 发表于 2025-3-24 03:35:55
An extension of path expressions to simplify navigation in object-oriented queries, that this does not fully exploit their potential expressive power as a tool to specify connections between objects. In particular, a user should not be required to specify a path to be followed in full, but rather should provide enough information so that the system can infer missing details automa确定无疑 发表于 2025-3-24 09:40:15
Query classes,he query language in such a data model has to reflect the amalgamation because it works as the interface to the user and/or application program. This paper proposes a language to formulate queries as classes related to the schema classes and constrained by an associative membership condition. AnswerJacket 发表于 2025-3-24 10:54:26
http://reply.papertrans.cn/27/2646/264516/264516_17.pngcumulative 发表于 2025-3-24 16:32:42
http://reply.papertrans.cn/27/2646/264516/264516_18.pngOpponent 发表于 2025-3-24 20:13:27
https://doi.org/10.1007/978-3-658-33707-0antically-rich query that is more efficiently processed. We also discuss the issues of conflict resolution strategies and query evaluation priorities for queries involving the upper bounds of objects in the F-logic “type” lattice.Detonate 发表于 2025-3-25 00:10:35
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