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Titlebook: An Extended Entity-Relationship Model; Fundamentals and Pra Martin Gogolla Book 1994 Springer-Verlag Berlin Heidelberg 1994 Constraint.Data

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樓主
發(fā)表于 2025-3-21 16:58:43 | 只看該作者 |倒序瀏覽 |閱讀模式
期刊全稱An Extended Entity-Relationship Model
期刊簡稱Fundamentals and Pra
影響因子2023Martin Gogolla
視頻videohttp://file.papertrans.cn/156/155016/155016.mp4
學科分類Lecture Notes in Computer Science
圖書封面Titlebook: An Extended Entity-Relationship Model; Fundamentals and Pra Martin Gogolla Book 1994 Springer-Verlag Berlin Heidelberg 1994 Constraint.Data
影響因子This text presents a comprehensive introduction to anextendedEntity-Relationship model both on a conceptual andon a formal, mathematicallevel. In addition to theprimitives given by the data model the text introduces alanguage for the formulation of constraints in order torestrict database states to consistent ones. The textexplains animplementation of the approach chosen in thelogic programing languagePROLOG and discusses in thiscontext the computational power of the proposedcalculus.The extended Entity-Relationship calculus is used todefinethe meaning of the relational query language SQL. A nicefeature of the approach is that it becomes possible to provelanguage properties on a sound mathematical basis.
Pindex Book 1994
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沙發(fā)
發(fā)表于 2025-3-21 23:46:22 | 只看該作者
https://doi.org/10.1007/3-540-57648-7Constraint; Database Design; Database Query Languauges; Datenbank-Abfragesprache; Entity-Relationship Mo
板凳
發(fā)表于 2025-3-22 02:13:15 | 只看該作者
地板
發(fā)表于 2025-3-22 07:57:04 | 只看該作者
Der Inflationseinflu? auf die Planungd record-valued sort expressions; algebraic specification of sort expressions; operations and predicates induced by the sort expressions; conversions and aggregation functions; algebraic specification of operations and predicates induced by sort expressions; user-defined aggregates; extended Entity-
5#
發(fā)表于 2025-3-22 11:23:56 | 只看該作者
Der Inflationseinflu? auf die Planungonstruction and inheritance; ranges; formulas; final form of declarations; queries; transitive closure; sorting feature; finiteness of calculus terms; safeness of the extended Entity-Relationship calculus; relational completeness of the extended Entity-Relationship calculus; relationship and value d
6#
發(fā)表于 2025-3-22 15:19:49 | 只看該作者
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發(fā)表于 2025-3-22 17:52:05 | 只看該作者
https://doi.org/10.1007/978-3-322-84230-5ies with UNION; SQL queries following the SELECT FROM WHERE schema; search conditions; EXISTS, ANY, ALL, and IN subqueries; duplicates in results; general requirements for SQL core queries; semantic equations for SQL core queries; example for translating an SQL query to the calculus; comparison to s
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發(fā)表于 2025-3-22 22:22:23 | 只看該作者
An Extended Entity-Relationship Model978-3-540-48301-4Series ISSN 0302-9743 Series E-ISSN 1611-3349
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發(fā)表于 2025-3-23 05:07:40 | 只看該作者
Aufgaben, Ziele und Grenzen der PlanungDatabase design; conceptual design; semantic data models; foundations of data models and languages; Entity-Relationship models; missing formal semantics for Entity-Relationship query languages; overview of the contents of this text.
10#
發(fā)表于 2025-3-23 08:56:02 | 只看該作者
Introduction,Database design; conceptual design; semantic data models; foundations of data models and languages; Entity-Relationship models; missing formal semantics for Entity-Relationship query languages; overview of the contents of this text.
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