relational model

First of all, this paper investigates research status of fuzzy relational database and properties of vague set, and then puts forward a generalized fuzzy relational data model on vague set ( VGFRDM) and a fuzzy database structured query language on vague set ( VFSQL).

本文首先探讨了模糊关系数据库的研究现状和Vague集的性质，然后提出了基于Vague集的广义模糊关系数据模型VGFRDM和基于Vague集的模糊数据库查询语言VFSQL。

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Application Research in the Field of ODL Performance Analysis of Variable Precision Rough Set Based on Relational Model

可变精度粗糙集模型在远程开放教育中的应用

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Weighed Grey Relational Model and Its Application to Manufacturing Technology

灰色关联模型及其在制造工艺评价中的应用

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Methods of Using XML to Represent m: n Relationship in Relational Model

XML表达关系模型中m：n联系的方法

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Relational model of data for large shared data

大型共享数据的关系模型

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Genetic arithmetic in the constraint relational model of concurrent engineering

遗传算法在并行工程约束关系模型中的应用

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Research on Constraint Relational Model of Non-Classical Relational Database in Query Optimization

非经典关系数据库中约束关系模型在查询优化中的应用

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In the past 30 years, the database system has already developed the no relational model, the next generation Object-Relational Database System ( ORDBS), the third generation Object Oriented database system ( OODBS).

经过30年的发展，数据库系统已经历了第一非关系型数据库、第二代关系型数据库（ORDBS）的发展到面向对象数据库系统（OODBS）和各种专业数据库。

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Finally, taking a sub firm affiliated to China Rail Construction Co. Ltd. as an example, this thesis conducted an empirical study on the application of the Grey Relational Grade Model to the evaluation of labor suppliers of construction enterprises.

论文以中国铁建股份有限公司的三级子公司为例，进一步就灰色关联度模型在施工企业劳务分包商评价中的应用进行了实证研究。

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The use of these languages has been extended to the relational model.

这些语言的使用已经扩展到了关系模型中。

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This paper defines for course important level first, has made major assessment index and its relational model.

本文首先对课程重要程度进行定义，并在深入分析的基础上，提出了主要评价指标及其关系模型。

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An Algorithm for Decomposing Relational Model into Third Normal Form

一种关系模式的第三范式分解算法

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Use relational model to design the knowledge database of medical expert system

用关系数据库实现医疗专家系统的知识表示

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A Conversion from Relational Model to Network Model

从关系模式到网状模式

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Null value is introduced to the extended relational model of paper [ 1].

本文在〔1〕扩展关系模型中引入属性级的不完全信息空值。

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Partial relational model is the extension of the relational data model in data domains.

偏序关系模型（Partial Relational Model）是对关系数据模型在序领域中的推广。

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A study of EDM technological database based on relational model

基于关系模型的电火花加工工艺数据库的研究

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Why was System R chosen as the model for IBM's first relational database?

为何System R被选中作为第一个关系型数据库？

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This paper takes XML as a public model and studies the conversion technology among heterogeneous relational database systems by means of reversible conversion between relational and XML, and this process keep on entity integrity constraints of source database.

所以本文研究以XML为公共模型，通过关系数据库与XML的可逆双向转换，建立异构关系数据源的统一转换工具。转换过程保留关系数据库的完整性约束。

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Disposal of Redundancy in the Relational Model Under the Fuzzy Null Value Environment

模糊空值环境下关系模型的冗余处理

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Relational figure language is one way to express the operation of relational data model.

关系演算语言是表达关系数据模型中的数据操作的1种方式.

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We also studied many problems on data integration for E-Government applications, such as, relational data model based on XML, XML data schema transforming, distributed transaction processing based on web services.

在电子政务系统数据集成的问题上，本文研究了关系型数据的XML表示、XML数据模式变换和基于Web Services的分布式事务处理问题。

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The application of relational database model to a pest database of afforestation

关系模型在绿化植物有害生物数据库中的应用

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Research on Spatiotemporal Object-Relational Model

时空对象关系模型研究

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Because symfony uses Propel to provide Object Relational Mapping, you need to generate the model with the symfony command-line utility.

由于symfony将使用Propel来提供对象关系映射（Object Relational Mapping），因此需要用symfony命令行实用程序来生成模型。

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Conversion from Object Model to Relational Model of Database

从对象模型到数据库关系模型的转换

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An Ability-Course Relational Model and Its Application in Undergraduate Engineering Programs

应用型生物工程本科微生物学课程群教改刍议本科工程教育的能力与课程关系模型及其应用

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The paper simply introduces the action of constraint relational model on implementing concurrent engineering.

简述了约束关系模型在并行工程实施中的作用。

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A learning algorithm based on Lyapunov stability is derived to fuzzy relational model identification in this paper.

本文在李雅普诺夫稳定性意义下，提出了一种辨识模糊关系模型的学习算法。

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Based the gray trend relational degree and systems engineering theory, the model relational system is investigated.

本文应用系统工程理论, 结合灰色趋势关联度,研究了灰色趋势关联系统及数学模型.

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