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。
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。
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。
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。
The SDS team added recently a familiar SQL Server relational model which is based on existing SQL Server APIs and tools.
最近SDS小组增加了一个熟悉的SQLServer关系模型，它基于现有的SQL ServerAPIs与工具。
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。
Based on the fuzzy relational model of the open-loop system, the design of a fuzzy feedback controller is discussed.
以开环系统模糊关系模型为基础，讨论了模糊关系系统反馈控制器的设计。
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。
This is particularly useful if you'd like to present your SQL application programmers with a relational model of your native XML data.
如果要为SQL应用程序的程序员提供本地XML 数据的关系模型，那么这种功能特别有用。
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)。
In order to express and process mixed-type incomplete information in relational database, a - simplified expanded relational model is given.
为了能够表示和处理关系数据库中这种混合类不完全信息，文中最后给出了一种简化的扩展关系模型。
As one of DBMS which are aimed at network computing and supports object-oriented relational model, ORACLE8 has gotten wide-ranging application.
ORACLE8数据库管理系统作为一种面向网络计算，并支持对象关系模型的产品已得到了广泛的应用。
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。
The intelligence consultation system of OTC uses B/S portal frame construction, uses object relational model realization to model data knowledge;
非处方药智能咨询系统的开发采用B／S的框架结构，运用对象关系模型实现知识的建模；
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。
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。
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。
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。
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。
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。
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