The paper introduced the basic conception of math of relation database model, N-ple relation, fordered N-ple and fordered sets.
给出了关系数据库模型的数学基本概念，如N元关系、N元有序组及N元有序组集合。
According to the demands, the structure of the database has been designed: defining data, defining table, building relation data model and designing the data structure.
按照任务的目的和要求，设计了其数据库系统结构：定义数据、表、创建数据关系模型及设计数据结构。
On this basis, it emphasized how to establish the node basic information database and the restricting relation database, and constructed out the mathematic model of the planar linkage mechanism.
在此基础上，着重阐述了如何建立结点基本信息数据库和约束关系数据库，从而构造出平面连杆机构的数学模型。
In this paper, we propose a new relation active database model which can support complex event and multiple coupling model, and then give a description of its system execution model.
本文中提出一个支持符合事件、允许多种规则耦合模式的主动关系数据库模型，并给出相应的系统执行模型的描述。
The integrated model can simplify administration of privileges, and is appropriate for multilevel relation database system which has many users or complex security levels.
该模型方便了管理员的权限管理，适合用户较多，安全层次比较复杂的多级关系数据库系统。
Active fuzzy data model is studied based on relation data model. Following an introduction to active fuzzy database technology, the structure of active fuzzy database is analyzed.
在关系数据模型的基础上，对主动模糊数据模型进行了研究，介绍了主动模糊数据库技术，分析了主动模糊数据库的结构。
The Database modeling approach of IDEF1X that bases on the relation model is employed in the system design.
系统设计中利用基于关系模型的数据库建模方法idef1x对属性数据进行建模。
This article introduces the work stream in designing of object relation database, and mainly discusses the ways of mapping from the class model to the relational model.
介绍对象关系数据库设计的工作流程，讨论如何将类模型映射到关系模型。
This database system is developed on the based of relation model, and has been developed with the Object Oriented (OO) method.
该数据库系统的开发工作是基于关系模型，并用面向对象的方法进行了扩展。
Therefore, geographic data model based on relation typed database is established in developing information administrative system of nature reserves.
为此，在开发自然保护区信息管理系统时，建立了基于关系型数据库的地理数据模型。
In makes an applied multi-level relation model to be basement of security database for following the BLP model.
为了适应BLP模型，采用一种实用的多级关系 模型作为安全数据库的基础，这是原有 关系 模型的扩展。
In this paper, we proposed a formal security database system access model including a multilevel relation model and a element-level authorization.
提出了一个安全数据库访问控制模型，包括一个多层关系模型和一个用以增强自主访问控制能力的元素级粒度的授权。
Based on traditional relationship database system, a relationship-based flow control model was proposed. The application of this relation-based flow control model was explained.
在传统的关系数据库的基础上，提出了一个适用于关键业务开发的基于关系结构的流程控制模型，说明了该模型目前的应用情况。
Studying, Designing And Implement Of Data Model For Interoperability Between Relation Database And Multimedia Database;
多媒体数据采掘是从大型多媒体数据库中提取高层的多媒体信息及知识。
Studying, Designing And Implement Of Data Model For Interoperability Between Relation Database And Multimedia Database;
多媒体数据采掘是从大型多媒体数据库中提取高层的多媒体信息及知识。
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