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。
The importance of order in XML contrasts sharply with the absence of intrinsic order in the relational data model.
XML中次序的重要性与关系数据模型中缺少固有次序形成了鲜明对比。
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。
The Object oriented model is built on methodology, while the relational data model is on basis of the set theory. The difference principal between the two models leads to the dispatch problem.
面向对象模型基于方法学原理，关系数据模型基于集合论原理，理论基础的不同导致了两种模型之间的阻抗不匹配。
The Relational DAS will take this schema and use it to define the model for the Service Data Objects it can create.
关系型DAS采用此架构并使用它定义可以创建的服务数据对象的模式。
Data will be stored in a relational database by default, but Oslo is not limited to the relational model.
默认情况下，数据会被储存在一个关系数据库中，不过Oslo不限于这种关系模型。
The expressive power of XQuery is comparable to the criterion of "relational completeness" defined for database query languages, though no such formal standard has been defined for an XML data model.
XQuery的表达能力可以与为数据库查询语言定义的“关系完整性”标准相比，虽然还没有为XML数据模型定义这样的正式标准。
Mapping XML data to the relational model is not a trivial task (maybe one of the reasons for the variety of mapping solutions in the market).
将XML数据映射到关系模型不是一件普通的任务(这也许就是市场上存在多种映射解决方案的原因之一)。
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。
Why not just model the data as a document, which doesn't necessarily fit into a rigid relational model but roughly follows the semantics of a high-level model?
为什么不将数据建模为文档呢？这样可以不用死守严格的关系模式，而只需要大致遵循高级模式的语义。
Although this data could be stored in a relational database, it fits well with the documented-oriented model too, don't you think?
虽然该数据可以存储在关系数据库中，但也同样可以使用面向文档的模型。
It provides a DB2 relational model for the remote data and assists the federated engine in query processing by sending sub-queries to the remote data source.
它提供了远程数据的DB 2关系模型，并通过向远程数据源发送子查询以帮助联邦引擎实现查询处理。
Much of the power of the relational model comes from the fact that the relational table is the single data structure that represents homogeneous collections of data.
关系模型的大部分功能都来自于这样一个事实：关系表是代表同质数据集合的单一数据结构。
An application's reliance on XML documents for data exchange and relational databases for data persistence are characteristics of the application's business logic (that is, its model).
应用程序依赖XML文件来进行数据交换以及关系数据库来提供数据永久性都是应用程序业务逻辑(也就是其模式)的特征。
There is no need to specify a SQL statement for updates because the Relational DAS derives this from the model and the contact data object's change summary.
不需要为更新指定sql语句，原因是关系型DAS可以从模式和联系人数据对象的更改概要中派生它。
Plus, you would have to write additional code in the middle tier to map the relational data to an Object data Model or an XML data Model.
另外，必须在中间层中编写更多代码，将关系数据映射到对象数据模型或XML数据模型。
On the other hand, a physical data model is a database-specific model that represents relational data objects (for example, tables, columns, primary and foreign keys, and their relationships).
另一方面，物理数据模型是数据库特定的模型，它代表关系数据对象，例如表、列、主键、外键以及它们的关系。
As a component of InfoSphere Warehouse, Cubing Services provide all the tools you need to design, deploy, and administer a multidimensional model of your relational data.
作为InfoSphereWarehouse的一个组件，CubingServices提供设计、部署和管理关系数据的多维度模型所需的所有工具。
One major advantage of the relational model is that, if a database is designed efficiently, there should be no duplication of any data; helping to maintain database integrity.
关系型数据库的一个主要优点是：如果数据库设计的很有效，将不存在数据的冗余，这有助于保证数据库的完整性。
then why can't we use XML as our first class data and programming model, given all the problems we learned the hard way with object-relational or OX mapping?
那么，考虑到我们在使用对象关系或OX映射的过程中发现的种种问题，为什么我们不能使用XML作为首选数据与编程模型呢？
The query syntax is part of Erlang itself, while the data model is akin to an object-relational DBMS.
查询语法是Erlang的一部分，数据模型类似于对象-关系数据库管理系统。
Translate the CWS (or other clinical database) relational database into an XML stream and re-constitute the data in a better normalized data model.
将CWS（或者其他的临床资料库）相关资料库转化成一个XML流，并且重建一个较好的规范化资料模型上的数据。
NHMDB is a multimedia database system based on the extended relational data model and has the characteristics of object-oriented databases.
NHMDB是基于扩充关系数据模型的多媒介数据库系统，它以扩充关系为基础支持面向对象的主要特性。
With many accumulated relational data, using the relational model to analyze data apparently dissatisfies the demand.
随着大量关系数据的聚集，借助关系模型分析数据已明显不足。
The paper presents a data quality assess model for relational database and defines the accuracy metric at attribute level.
针对数据库数据质量评价问题，给出了一个属性粒度的质量评价模型，定义了正确性评价指标。
It describes the relationship between project data with Relational Model. Relational Database supplies storing and manipulating data mechanism.
并且用关系数据库来描述工程数据间的相互关系，实现数据的存储和操作。
The paper mostly introduces the application design and functional model of the active-standby switch along with relational data structure from software system design aspect for similar application.
文章主要从软件系统设计方面主备切换的具体实现方案，功能模块的划分以及相应的数据结构方面进行了综合讨论，为类似设计提供了参考。
A new definition of similar data set is proposed for some special data sets which have the same attributes in a relational database model.
采用关系数据库模型进行建模，对于同一关系框架上的数据定义了相似数据集。
A new double relational filtering model is constructed using two wavelet groups to enhance the filtering constraints of the geophysical and geochemical data.
构建了一个考虑两个子波群，增加信息约束条件对研究区物化探信息进行滤波的新模型—双子波关联滤波模型。
A fuzzy relational data model with fuzzy attributes, which could be used for truly modeling various fuzzy objects in the real world, is presented in the paper.
本文提出了一种属性具有模糊度的模糊关系数据库模型，它可用来描述现实世界中范围广泛的模糊对象。
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