標(biāo)題: Titlebook: Constraint Databases and Applications; ESPRIT WG CONTESSA W Gabriel Kuper,Mark Wallace Conference proceedings 1996 Springer-Verlag Berlin H [打印本頁(yè)] 作者: 機(jī)會(huì) 時(shí)間: 2025-3-21 18:48
書目名稱Constraint Databases and Applications影響因子(影響力)
書目名稱Constraint Databases and Applications影響因子(影響力)學(xué)科排名
書目名稱Constraint Databases and Applications網(wǎng)絡(luò)公開度
書目名稱Constraint Databases and Applications網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Constraint Databases and Applications被引頻次
書目名稱Constraint Databases and Applications被引頻次學(xué)科排名
書目名稱Constraint Databases and Applications年度引用
書目名稱Constraint Databases and Applications年度引用學(xué)科排名
書目名稱Constraint Databases and Applications讀者反饋
書目名稱Constraint Databases and Applications讀者反饋學(xué)科排名
作者: STERN 時(shí)間: 2025-3-21 21:46 作者: 暴露他抗議 時(shí)間: 2025-3-22 01:18 作者: 防御 時(shí)間: 2025-3-22 06:16 作者: 食草 時(shí)間: 2025-3-22 12:08
https://doi.org/10.1007/978-3-319-04990-8talog queries and input databases with both integer gap-order [30] and set order constraints [31]. The DISCO query language can easily express many complex problems involving sets. The paper also presents efficient running times for several sample queries.作者: 語言學(xué) 時(shí)間: 2025-3-22 15:13
Huseyin Haci,Huiling Zhu,Jiangzhou Wang how to use constraints for the processing of queries that contain user-defined functions. Such functions are a common feature in many extended and object-oriented database applications. By representing knowledge about the functions through constraints, the efficiency of query optimization and execu作者: 語言學(xué) 時(shí)間: 2025-3-22 20:10 作者: 凌辱 時(shí)間: 2025-3-22 22:23
Mürsel Yildiz,Manzoor Ahmed Khan and Kornatzky. We augment Brodsky and Kornatzky‘s model with a few simple primitives, that would make querying the model simpler and more natural. Our basic model is quite similar to the Brodsky and Kornatzky‘s model but, by the introduction of the notion of a ., the modelling of part-subpart relat作者: Biomarker 時(shí)間: 2025-3-23 05:06 作者: 輕打 時(shí)間: 2025-3-23 07:00
Sebastian Peters,Denis Pozo Pardo,Qing Zhouapplications. This paper describes a first step towards integrating these techniques into database systems. The main idea is to optimise complex queries by continually checking to see if the current partial results are consistent with the remainder of the query..In this paper we present a query lang作者: 懸掛 時(shí)間: 2025-3-23 13:35 作者: leniency 時(shí)間: 2025-3-23 17:48
https://doi.org/10.1007/3-540-60794-3(GIS); Abgbfrageoptimierung; Constraint Databases; Constraint Datenbanken; Constraint Processing; Constra作者: 不足的東西 時(shí)間: 2025-3-23 18:25 作者: 小故事 時(shí)間: 2025-3-24 02:02
DISCO: A constraint database system with sets,talog queries and input databases with both integer gap-order [30] and set order constraints [31]. The DISCO query language can easily express many complex problems involving sets. The paper also presents efficient running times for several sample queries.作者: 和諧 時(shí)間: 2025-3-24 03:35 作者: 大方一點(diǎn) 時(shí)間: 2025-3-24 07:34
Constraint Databases and Applications978-3-540-49456-0Series ISSN 0302-9743 Series E-ISSN 1611-3349 作者: GULF 時(shí)間: 2025-3-24 13:48 作者: CRACK 時(shí)間: 2025-3-24 14:50 作者: Hypomania 時(shí)間: 2025-3-24 19:49 作者: occurrence 時(shí)間: 2025-3-25 03:10
Ambiguity for referential integrity is undecidable,he former case rollback the operation. Since such checks are time consuming, one might consider performing them only for schemas which bear the risk of an indeterminism. This paper shows that it is . whether or not a schema may have an instance leading to ambiguities. Therefore, unnecessary checks cannot be avoided in general.作者: Triglyceride 時(shí)間: 2025-3-25 06:38 作者: Coronation 時(shí)間: 2025-3-25 09:31
On the expressiveness of first-order constraint languages,stronger in that we prove that it is not expressible in any higher order logic either. Furthermore, we show that the same query can be expressed in . by giving a non-trivial sentence that characterizes the class of databases consisting of exactly one line.作者: Expiration 時(shí)間: 2025-3-25 14:41 作者: 寬大 時(shí)間: 2025-3-25 18:07
Towards the definition of a spatial object-oriented data model with constraints,r basic model is quite similar to the Brodsky and Kornatzky‘s model but, by the introduction of the notion of a ., the modelling of part-subpart relationships is greatly simplified. In fact, we are even able to express “what-if” queries (for example: “Where can I put a desk in the room?”) quite naturally.作者: endure 時(shí)間: 2025-3-25 21:53
Ulrich Beck’s Scientific Leadership Profiletions. We then analyze the issues concerning spatial data modeling in the proposed constraint data model and the application of the proposed language to model spatial queries. Indeed, constraint databases offer a powerful formalism to express sets of points embedded in .-dimensional spaces.作者: CREEK 時(shí)間: 2025-3-26 03:20 作者: Absenteeism 時(shí)間: 2025-3-26 06:52
Conference proceedings 1996chshafen, Germany in September 1995..The 10 full revised papers selected for inclusion in this volume are written by and for practitioners, researchers, and application users of core constraint database technology; they can be classified in three sections on expressiveness of the various constraint 作者: grenade 時(shí)間: 2025-3-26 10:11 作者: 言外之意 時(shí)間: 2025-3-26 12:43 作者: cartilage 時(shí)間: 2025-3-26 18:59 作者: 規(guī)章 時(shí)間: 2025-3-26 22:31
0302-9743 ing. This book is the first to focus on the extension of the important new programming paradigm of constraint processing to database design and management.978-3-540-60794-6978-3-540-49456-0Series ISSN 0302-9743 Series E-ISSN 1611-3349 作者: Sigmoidoscopy 時(shí)間: 2025-3-27 03:17
Sebastian Peters,Denis Pozo Pardo,Qing Zhounguage and the translation are motivated by various examples; in particular an application to crossword generation is described where the optimisation proposed in this paper adds significantly to standard database optimisation techniques.作者: induct 時(shí)間: 2025-3-27 07:04 作者: 遠(yuǎn)地點(diǎn) 時(shí)間: 2025-3-27 09:51
0302-9743 in Friedrichshafen, Germany in September 1995..The 10 full revised papers selected for inclusion in this volume are written by and for practitioners, researchers, and application users of core constraint database technology; they can be classified in three sections on expressiveness of the various c作者: STRIA 時(shí)間: 2025-3-27 16:05
Ulrich Beck,Elisabeth Beck-Gernsheimand discrete mathematics. Large scale combinatorial problems can be easily expressed and efficiently solved, minimising programming effort while providing flexibility in expressing constraints and assignment strategies. We present examples from many different application areas and present an analysis of advantages and problems of this approach.作者: 大都市 時(shí)間: 2025-3-27 19:36 作者: 使痛苦 時(shí)間: 2025-3-27 22:58 作者: jagged 時(shí)間: 2025-3-28 04:16 作者: machination 時(shí)間: 2025-3-28 07:31 作者: TEN 時(shí)間: 2025-3-28 11:14 作者: 懶惰人民 時(shí)間: 2025-3-28 17:00
Generalized relational algebra: Modeling spatial queries in constraint databases,om the one proposed in [13], and a family of generalized relational algebra languages, derived from the language proposed in [12] and in [19]. Each language of the family is obtained by specifying a certain logical theory for constraints and a particular application domain, by means of a set of func作者: 熒光 時(shí)間: 2025-3-28 18:44 作者: 角斗士 時(shí)間: 2025-3-29 01:54 作者: dictator 時(shí)間: 2025-3-29 05:53
The application of multi-dimensional indexing methods to constraints, satisfy all the constraints of the problem. The art of constraint programming is to find ways of narrowing down the search space as much as possible with as little computational effort as possible. In databases, this is what indexes are for. And yet surprisingly little effort has so far been devote作者: CONE 時(shí)間: 2025-3-29 08:52
Towards the definition of a spatial object-oriented data model with constraints, and Kornatzky. We augment Brodsky and Kornatzky‘s model with a few simple primitives, that would make querying the model simpler and more natural. Our basic model is quite similar to the Brodsky and Kornatzky‘s model but, by the introduction of the notion of a ., the modelling of part-subpart relat作者: NOTCH 時(shí)間: 2025-3-29 13:44
Ambiguity for referential integrity is undecidable,rity constraints is now included in the new SQL2 standard [11] with capabilities to react on violations of specified integrity constraints. These reactions may lead to indeterminism with respect to the outcome of a user operation which is also known from the usage of rules or triggers. In the databa
