標題: Titlebook: An Extended Entity-Relationship Model; Fundamentals and Pra Martin Gogolla Book 1994 Springer-Verlag Berlin Heidelberg 1994 Constraint.Data [打印本頁] 作者: 夾子 時間: 2025-3-21 16:58
書目名稱An Extended Entity-Relationship Model影響因子(影響力)
作者: FRONT 時間: 2025-3-21 23:46
https://doi.org/10.1007/3-540-57648-7Constraint; Database Design; Database Query Languauges; Datenbank-Abfragesprache; Entity-Relationship Mo作者: oxidant 時間: 2025-3-22 02:13 作者: 裂口 時間: 2025-3-22 07:57
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-作者: Amenable 時間: 2025-3-22 11:23
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作者: follicular-unit 時間: 2025-3-22 15:19 作者: lattice 時間: 2025-3-22 17:52
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作者: Largess 時間: 2025-3-22 22:22
An Extended Entity-Relationship Model978-3-540-48301-4Series ISSN 0302-9743 Series E-ISSN 1611-3349 作者: EXCEL 時間: 2025-3-23 05:07
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.作者: Curmudgeon 時間: 2025-3-23 08:56
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.作者: 天氣 時間: 2025-3-23 11:08 作者: bacteria 時間: 2025-3-23 17:17
Der Inflationseinflu? auf die Planungand aggregation functions; algebraic specification of operations and predicates induced by sort expressions; user-defined aggregates; extended Entity-Relationship schemas; entity and relationship types; attributes; components; construction types; graphical representation; role names; comparison to other data models.作者: 新娘 時間: 2025-3-23 20:34
Der Inflationseinflu? auf die Planung safeness of the extended Entity-Relationship calculus; relational completeness of the extended Entity-Relationship calculus; relationship and value dependent joins; equivalence rules for calculus expressions; integrity constraints; case study: specification of extended Entity-Relationship schemas within the extended Entity-Relationship approach.作者: instulate 時間: 2025-3-24 00:30 作者: 完全 時間: 2025-3-24 02:42 作者: 組裝 時間: 2025-3-24 07:38 作者: agonist 時間: 2025-3-24 13:43
Book 1994tational 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.作者: 召集 時間: 2025-3-24 17:36
Book 1994tion 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 compu作者: 過份 時間: 2025-3-24 19:50 作者: 羊欄 時間: 2025-3-25 00:43 作者: 丑惡 時間: 2025-3-25 06:13
https://doi.org/10.1007/978-3-322-84230-5sensitive conditions for GROUP BY queries; semantic equations for SQL queries with aggregation and grouping; example for translating an SQL query with GROUP BY to the calculus; basic property of the FROM clause; properties of IN, ALL, ANY, and EXISTS; unnesting of SQL queries; antitheorem: ALL versus ANY.作者: ARY 時間: 2025-3-25 09:37
Formal semantics of SQL,sensitive conditions for GROUP BY queries; semantic equations for SQL queries with aggregation and grouping; example for translating an SQL query with GROUP BY to the calculus; basic property of the FROM clause; properties of IN, ALL, ANY, and EXISTS; unnesting of SQL queries; antitheorem: ALL versus ANY.作者: Pastry 時間: 2025-3-25 12:15 作者: Minuet 時間: 2025-3-25 17:52 作者: 山間窄路 時間: 2025-3-25 20:02 作者: 消瘦 時間: 2025-3-26 03:18
Formal semantics of SQL,ies 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作者: Acquired 時間: 2025-3-26 05:52 作者: 解決 時間: 2025-3-26 11:16 作者: Crohns-disease 時間: 2025-3-26 15:47 作者: Vulvodynia 時間: 2025-3-26 20:03
The Role of , — 2 in Lymphoid Differentation and Transformationnment for functional antigen receptor expression. Appropriate engagement of the antigen receptor, be it surface imunoglobulin (slg) or a T cell receptor (TCR) heterodimer, determines cell survival and induces proliferation and differentiation. Inappropriate engagement evokes cell suicide by apoptosis (Murphy et al., 1990; Swat et al., 1991).作者: 澄清 時間: 2025-3-26 23:11
Avoiding Calamity,inistrative institutions and processes. If these and other threats block further liberalization and equalization in any programmatic sense, what can be recommended? Demographic, economic, penal, governance, and foreign policies to avoid calamity are outlined.作者: 侵略 時間: 2025-3-27 01:43
Tourism as Emerging Industry in Rwanda: The Role of Training and Development for the Hotel Sectorf performance in the hospitality industry in Kigali. In discussing these results, this chapter recommends not only to intensify and diversify the types of training offered to employees, but also that employees should be given the opportunity to participate in training needs analyses.作者: 注射器 時間: 2025-3-27 06:49
Yohsuke Murase,Hiroyasu Matsushima,Itsuki Noda,Tomio Kamada (≈2600 m.g.). High values of surface area are caused by disjoining pressure of octane or water, which penetrate between GO nanosheets as opposed to nitrogen. GO affects adsorption properties of inorganic ion exchangers: this carbon material enhances cation exchange and depresses the adsorption of a作者: 食草 時間: 2025-3-27 09:27 作者: condone 時間: 2025-3-27 13:49 作者: choleretic 時間: 2025-3-27 18:56
Book 2004amentals of ACL injuries. The content is both thorough and practical. Readers will benefit from comprehensive discussions of diagnosis, partial tears, treatment options, operative techniques, and complications. This definitive guide also outlines a six-month rehabilitation program complete with goal作者: 拖債 時間: 2025-3-28 01:52 作者: Serenity 時間: 2025-3-28 03:38
