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。
Today, the most common model is the relational model with the SQL standard.
目前，最常见的模型是采用SQL标准的关系模型。
Compared with the hierarchical model, the relational model is quite complicated.
与层次模型相比，关系模型相当复杂。
I'll begin with a comparison of the XML model and the relational model, as Table 1 shows.
首先来比较xml模型和关系模型，如表1所示。
They are relational databases that provide the strengths of the relational model and its set processing.
这两种都是关系型的数据库，因而包含了关系模型及其集合处理的长处。
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。
A primary key is a special thing in the relational model: It must be unique to each record (row) of a table.
在关系模型中主键是特殊的事物：它对于表的每个记录(行)必须是唯一的。
Sequential Numbers are often used in OLTP-like applications to generate primary keys required by the relational model.
连续数字在oltp类应用程序中常常用于生成关系模型所需的主键。
The problem is that the strength of the relational model-the relational model itself-is also its greatest weakness.
问题在于关联式模型强度—关联式模型本身—也是其最大的缺点。
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 situation is similar to what you'd see in JDBC client code, wherein the API applies directly to the relational model.
这种情况与JDBC客户端代码相似，其中API直接应用到关系模型。
Structure of the relational database the relational model is the basis for any relational database management system (RDBMS).
关系数据库的结构关系模型是任何关系数据库管理系统(RDBMS)的基础。
Second, to verify the relational model and the formation mechanism, mobile phone products are as objects of empirical research.
其次从理论上验证该关系模型的形成机理，并以手机产品作为对象进行实证研究。
This research studied the relational model of the three-dimensional feature structure of the learning team and team effectiveness.
本研究用现场实验的方法对作者提出的学习型团队三维特征结构与团队效能关系模型进行了实证研究。
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)。
Second, the relational model between the complicated degree of small structure and geological influence factors is built by regression analysis.
然后，用回归分析法建立起小构造复杂程度与影响地质因素之间的关系模型。
If the object model for your application doesn't translate easily into the relational model, you'll have quite a challenge mapping your objects to tuples and back again.
如果应用程序的对象模型不能够方便地转换到关系模型，那么在将对象映射到元组以及将元组映射回对象方面，会碰到一定难度。
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。
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。
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。
To build the relational model between fundamental characteristics of travelers and trip mode choice, effective measures that impact and guide urban trip mode structure have been studied.
建立出行者基本属性与交通方式选择的关系模型，研究影响和引导城市交通方式结构的有效措施。
Through analyzing communication energy dissipation of wireless sensor nodes quantitatively, the relational model of cluster heads' residual energy and communication traffic was established.
通过定量分析传感器节点的通信能量消耗，建立了聚类首领剩余能量与通信流量的关系模型。
Though the braking performance test of drum brakes I verified the brake pressure and brake deceleration the accuracy of the relational model, and demonstrated the brake failure warning program.
通过鼓式制动器的制动效能试验，验证制动气压和制动减速度的关系模型的准确性，并对汽车制动失效报警方案进行论证。
We further divide the academic efforts in two subcategories: the relational model extensions and the cube-oriented approaches. Finally, we try to make a comparative analysis of the various efforts.
学术研究类的工作又进一步分为关系模型的扩展和面向数据立方的方法。
So just what is the relationship between XML and the relational data model?
那么XML与关系数据模型之间的关系究竟是怎样的？
This made it extremely easy to persist the published records without the need to create the HL7 model in a traditional relational structure.
这使得持久化已发布的记录非常容易，并且不需要用传统的关系数据结构创建hl7模型。
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。
In your transformation, the relational schema is the target model, for which the reconciliation will produce values.
在你的转换中，关联计划是目标模型，调和将为它产生值。
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。
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。
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