標(biāo)題: Titlebook: Deductive and Object-Oriented Databases; 5th International Co Fran?ois Bry,Raghu Ramakrishnan,Kotagiri Ramamohan Conference proceedings 199 [打印本頁] 作者: Jackson 時(shí)間: 2025-3-21 17:53
書目名稱Deductive and Object-Oriented Databases影響因子(影響力)
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書目名稱Deductive and Object-Oriented Databases網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Deductive and Object-Oriented Databases被引頻次
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書目名稱Deductive and Object-Oriented Databases讀者反饋
書目名稱Deductive and Object-Oriented Databases讀者反饋學(xué)科排名
作者: 連系 時(shí)間: 2025-3-22 00:04 作者: 遷移 時(shí)間: 2025-3-22 01:04 作者: 畢業(yè)典禮 時(shí)間: 2025-3-22 04:33 作者: 懲罰 時(shí)間: 2025-3-22 11:30
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作者: Diastole 時(shí)間: 2025-3-22 15:02
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作者: Diastole 時(shí)間: 2025-3-22 17:54
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, 作者: 協(xié)迫 時(shí)間: 2025-3-22 23:35 作者: 形上升才刺激 時(shí)間: 2025-3-23 04:32 作者: 人類的發(fā)源 時(shí)間: 2025-3-23 07:57
Was ist der ‘?sthetische 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作者: 斷言 時(shí)間: 2025-3-23 12:02 作者: FOVEA 時(shí)間: 2025-3-23 14:12
https://doi.org/10.1007/978-3-658-33841-1ntness of classes and class intersection inclusion into other classes as well as negations of these statements. We provide an advisor that supplies the user with possible update alternatives when trying to modify the schema. Formally we investigate the problem of updating object class structures for作者: AWE 時(shí)間: 2025-3-23 20:51
https://doi.org/10.1007/978-3-658-41003-2pproach is aimed at obtaining intensional translations that satisfy a view update request, instead of obtaining extensional translations. Intuitively, our translations are intensional in the sense that they characterise multiple possible values for a set of base fact updates such that the request is作者: 愛好 時(shí)間: 2025-3-24 01:33
Der überforderte Abiturient im Fach Deutscheveral systems which support active rules in an object-oriented data model have been proposed. However, many issues related to the integration of triggers with object-oriented modeling concepts have been devoted so far limited attention and still need investigation. In this paper, we discuss the pro作者: Intrepid 時(shí)間: 2025-3-24 04:33
https://doi.org/10.1007/978-3-658-06373-3has not yet been fully explored. As OODB‘s continue to expand in functionality to include the use of active rules and integrity constraints, the need for . becomes more apparent. This is especially true for active, object-oriented environments that also include deductive or declarative capabilities 作者: comely 時(shí)間: 2025-3-24 07:18 作者: 表狀態(tài) 時(shí)間: 2025-3-24 12:14 作者: 河流 時(shí)間: 2025-3-24 17:46 作者: Collected 時(shí)間: 2025-3-24 19:39
978-3-540-63792-9Springer-Verlag Berlin Heidelberg 1997作者: BILK 時(shí)間: 2025-3-25 02:47
Formal characterizations of active databases: Part II,ibility in defining an implementation-independent semantics of the active rules. The results extend the active database description language introduced in [5]|with additional semantic dimensions. We demonstrate through examples how we can encode the active rules and their operational behavior from different existing systems.作者: BLANC 時(shí)間: 2025-3-25 05:43
Zusammenfassung – Diskussion – Ausblickby evaluating the conditional tables with respect to the new assignment of the variables. Our approach avoids the replication of the base data and allows active self-maintenance of views triggered by identified updates of the base data.作者: 牽連 時(shí)間: 2025-3-25 07:46 作者: HAVOC 時(shí)間: 2025-3-25 12:39 作者: 信條 時(shí)間: 2025-3-25 16:17 作者: PTCA635 時(shí)間: 2025-3-25 19:59 作者: 大方不好 時(shí)間: 2025-3-26 03:38
Exploiting semantic of typed objects under an optimistic control in the transactional deferred updao achieve serializability, and a forward control to detect earlier non serializable situations. This study shows that, unlike previous semantic objects-based protocols, the new protocol is very adapted to client/server architectures.作者: vector 時(shí)間: 2025-3-26 05:49
0302-9743 in Montreux, Switzerland, in December 1997. The 22 revised full papers presented in this book were selected from a total of 59 submissions. Also included are abstracts or full versions of three invited talks and three tutorials and six short presentations. The papers are organized in topical sectio作者: 眼界 時(shí)間: 2025-3-26 08:59
Der überforderte Abiturient im Fach Deutschgers with object-oriented modeling concepts have been devoted so far limited attention and still need investigation. In this paper, we discuss the problems related to trigger inheritance and refinement in the context of the Chimera active object-oriented data model.作者: 最高峰 時(shí)間: 2025-3-26 13:37
https://doi.org/10.1007/978-3-658-41003-2ges of following this approach are to improve the meaningfulness of the translations to the users; to facilitate the treatment of infinite domains; and to reduce the search space needed to obtain the translations.作者: Creditee 時(shí)間: 2025-3-26 18:11 作者: 細(xì)節(jié) 時(shí)間: 2025-3-26 23:28 作者: amenity 時(shí)間: 2025-3-27 01:22
Conference proceedings 1997bstracts or full versions of three invited talks and three tutorials and six short presentations. The papers are organized in topical sections on materialized view maintenance, extending DBMs features, database updates, managing change in object databases, semantics of active databases, formal semantics, and new directions.作者: 演繹 時(shí)間: 2025-3-27 08:24 作者: 沒花的是打擾 時(shí)間: 2025-3-27 11:03 作者: aqueduct 時(shí)間: 2025-3-27 15:20
https://doi.org/10.1007/978-3-658-33841-1malized as first order monadic theories. We show the problem to be co-NP-complete in general. Based on a formal system, we provide incremental update algorithms. By introducing a rule-goal (hyper)graph, non-trivial conditions are presented in different cases which guarantee the problem‘s reduction to the polynomial level.作者: 我要沮喪 時(shí)間: 2025-3-27 19:35
Incremental updates for materialized OQL views,inearity, to derive incremental update plans. It turns out that it is feasible to employ ODMG OQL as a view definition language — instead of inventing a specialized one — in such an environment, since the majority of its clauses represent linear functions.作者: certain 時(shí)間: 2025-3-27 23:24 作者: FOLD 時(shí)間: 2025-3-28 03:49
Logical updating of object class structures,malized as first order monadic theories. We show the problem to be co-NP-complete in general. Based on a formal system, we provide incremental update algorithms. By introducing a rule-goal (hyper)graph, non-trivial conditions are presented in different cases which guarantee the problem‘s reduction to the polynomial level.作者: GET 時(shí)間: 2025-3-28 07:45
0302-9743 ns on materialized view maintenance, extending DBMs features, database updates, managing change in object databases, semantics of active databases, formal semantics, and new directions.978-3-540-63792-9978-3-540-69647-6Series ISSN 0302-9743 Series E-ISSN 1611-3349 作者: faddish 時(shí)間: 2025-3-28 11:20
Conference proceedings 1997ux, Switzerland, in December 1997. The 22 revised full papers presented in this book were selected from a total of 59 submissions. Also included are abstracts or full versions of three invited talks and three tutorials and six short presentations. The papers are organized in topical sections on mate作者: 做事過頭 時(shí)間: 2025-3-28 17:51 作者: 裙帶關(guān)系 時(shí)間: 2025-3-28 22:39
Maintaining constrained transitive closure by conjunctive queries,considered 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作者: 知識(shí)分子 時(shí)間: 2025-3-29 02:52 作者: 拒絕 時(shí)間: 2025-3-29 03:19
View maintenance using conditional tables,ble 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, 作者: 收到 時(shí)間: 2025-3-29 11:11
Adding uniqueness constraints to description logics,r of alternative semantics for concept constructors that could be introduced for this purpose in Description Logics. Most significantly, we show that Classic—the hitherto most expressive DL for which reasoning is tractable, can be extended with a version of constructors capturing functional dependen作者: HEPA-filter 時(shí)間: 2025-3-29 13:24
A point-based temporal extension of SQL, our approach. The proposed language—SQL/TP—extends the syntax and semantics of SQL/92 in a very natural way: by adding a single data type to represent a linearly ordered universe of . instants. Such an extension allows the users to write temporal queries in customary fashion and . simplifies the se作者: 彎曲的人 時(shí)間: 2025-3-29 16:38 作者: 不愛防注射 時(shí)間: 2025-3-29 20:35
Exploiting semantic of typed objects under an optimistic control in the transactional deferred updaexploiting properties such as commutativity of typed operations. To extract concurrency from objects, for the DU model, theoretical studies based on dependency graph model emphasized different types of dependencies between operations. Dependencies allow to specify possible concurrency between operat作者: Encoding 時(shí)間: 2025-3-30 00:20 作者: 公豬 時(shí)間: 2025-3-30 04:45 作者: 鑒賞家 時(shí)間: 2025-3-30 10:38
Trigger inheritance and overriding in active object database systems,everal systems which support active rules in an object-oriented data model have been proposed. However, many issues related to the integration of triggers with object-oriented modeling concepts have been devoted so far limited attention and still need investigation. In this paper, we discuss the pro作者: 財(cái)產(chǎn) 時(shí)間: 2025-3-30 12:38 作者: 廚房里面 時(shí)間: 2025-3-30 19:50 作者: 壓倒性勝利 時(shí)間: 2025-3-30 23:59
Formal characterizations of active databases: Part II,ibility in defining an implementation-independent semantics of the active rules. The results extend the active database description language introduced in [5]|with additional semantic dimensions. We demonstrate through examples how we can encode the active rules and their operational behavior from d作者: Silent-Ischemia 時(shí)間: 2025-3-31 01:05 作者: 決定性 時(shí)間: 2025-3-31 06:26
,From action theories to updates, transactions, triggers and agents — A tutorial,作者: 甜得發(fā)膩 時(shí)間: 2025-3-31 11:46
Fran?ois Bry,Raghu Ramakrishnan,Kotagiri Ramamohan作者: 陰謀小團(tuán)體 時(shí)間: 2025-3-31 13:39
Wissenschaft und Zukunft im Spannungsfeldn a protected workspace, from requirements to the generation of code for the Oracle relational DBMS..A number of other resources can be accessed from within the Web Lab for assisting the learning process of the methodology, including the documentation of selected applications developed by the indust
