relational data model
英 [rɪˈleɪʃənl ˈdeɪtə ˈmɒdl]
美 [rɪˈleɪʃənl ˈdeɪtə ˈmɑːdl]
网络 关系数据模型; 关系模型; 模型; 关系型数据库; 关联式资料模型
双语例句
- Object relational mapping refers to the technique of mapping the data representation from an object model to a relational data model with a SQL-based schema.
用基于SQL的模式可以把数据呈现从对象模型映射到关系数据模型，对象关系映射引用了这项技术。 - The first step is to explore the data model designer in which an arbitrary relational data model is created simply by providing the names and basic parameters of tables and fields.
第一步是探索数据模型设计器，在这里，可以通过提供表和字段的名称和基本参数，创建一个任意的关系数据模型。 - The relational data model and use of the SQL language allows for enterprise level performance and scalability.
关系数据库模型和SQL语言的使用必须考虑到企业级性能和可伸缩性。 - Just like SQL is a query language designed for the relational data model, XQuery is a language designed specifically to query XML data.
正如SQL是为关系型数据模型设计的查询语言一样，XQuery是专为查询XML数据设计的语言。 - I'm glad I'm not bound to the relational data model.
所幸我不必局限于关系数据模型。 - Data Dependencies Based on Vague Relational Data Model
基于Vague关系数据模型的数据依赖 - Research on Association Rule Mining Based on Master-Slave Relational Data Model
基于主从关系数据模型的关联规则挖掘研究 - The paper also indicated the remaining problems which would be paid attention during the completion and development of the relational data model.
同时还提示了在完成和发展该关系数据模型中所需注意的问题。 - The Normal Forms Based on Object-Relational Data Model
基于对象-关系数据模型的范式研究 - Based on the extended relational data model, engineering graphical data arc successfully described in this paper.
它基于扩充关系数据模型，成功地完成了对工程图形数据的描述。 - 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。 - On this basis, the authors give the mapping rules between main elements in DTD of XML document and relational data model; and design the algorithm for the autogeneration of conversion rule script and the algorithm for data conversion.
给出XML文档的DTD中各主要元素与关系数据模型之间的映射规则，设计转换规则脚本的自动生成算法和数据转换算法。 - A relational data model based knowledge model
一种基于关系数据模型的知识模型 - In this paper, an XML relational data model suitable for data transforming is presented. An XML-XML and XML-DBMS data transforming designer is also introduced.
本文提出了适于数据变换的XML关系型数据模型，实现了XML-XML及RDBMS-XML数据变换定义工具和相应的数据变换引擎。 - This paper puts forward a Generalized Fuzzy Relational Data Model Based on Vague Set ( VGFRDM) of fuzzy relational database, which is built on the existing fuzzy relational data model.
该文在已有的模糊关系数据模型的基础上，提出了模糊关系数据库的一种基于Vague集的广义模糊关系数据模型VGFRDM。 - Based on the theory of vague set, an extended vague relational data model is proposed.
基于Vague集理论，提出了一种扩展Vague关系数据模型。 - This paper introduces the modeling method of object-oriented data model, and the transform method and application from object-oriented data model to relational data model, which combines with the development of the database of Vibro_Energy Mill CAD System.
本文结合立磨机CAD系统的数据库的开发，介绍了面向对象数据模型的建模方法，及将面向对象数据模型映射到关系数据模型的方法和应用。 - Research on the Mapping between XML Document Framework and Relational Data Model
XML文档架构与关系数据模型间的映射研究 - Has built an real time relational data model ( RTRDM) in real time database systems in paper of relational data model in real time database systems.
在《实时数据库系统的关系数据模型》一文中建立了实时数据库系统（RTDBS）的实时关系数据模型（RTRDM）。 - We explore a kind of SQL-like query language and adopt the relational data model.
本文将网络中的数据定义为关系模型，并采用了一种类SQL的查询语言在该模型上进行用户查询。 - This paper gives a method realizing information classification to protect data security with mandatory access control policies in multilevel relational data model.
本文提出了一种在多层次关系数据模型中采用强制存取控制策略实现对信息分级分类进行管理，强行限制系统中信息的流动和共享，以保护信息安全的方法。 - 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WebServices的分布式事务处理问题。 - The second generation is the relational data model based data base;
第二代数据库是基于平面关系模型的关系数据库系统； - The system is an extened relational data model which supports NF 2 and multimedia data storing and data operating.
系统采用了扩充的关系数据模型，它支持NF2和多媒体的数据存储和数据操作。 - Relational data model and object-oriented data model are prevalent now.
目前流行的通用数据模型主要是关系数据模型和面向对象数据模型。 - A considerable direction is to add a temporal data management layer by extending the mainstream relational data model for processing temporal information in application systems.
目前，时态数据库的实践和应用还相对落后，在主流的关系数据模型上进行扩展添加时态数据管理层来对应用系统中的时态信息进行处理是当前值得考虑的方向。 - As a special semi-structured data, XML is different from the data in relational data model.
XML作为一种特殊的半结构化数据，与关系数据模型中的数据是不同的。 - This mapping and Object-Relational mapping from two aspects, discussed by the object class diagram to the relational data model mapping program.
本文从对象映射和关系映射两个方面，讨论了由对象类图向关系数据模型映射的方案。 - As virtual database uses relational data model, the paper makes a special effort to discuss query rewriting technology-rewriting queries using views and its conjunctive query, containment mapping under this model.
基于虚拟数据库所采用的关系数据模型，着重探讨了该模型下的查询重写技术&利用视图重写查询以及基于其上的合取查询、包含映射等问题。 - Partial relational model is the extension of the relational data model in data domains.
偏序关系模型（PartialRelationalModel）是对关系数据模型在序领域中的推广。