relational model
[计] 关系模型
2026-03-22 06:03 浏览次数 15
[计] 关系模型
the grid system which takes ogsa as its architecture uses relational model as its information model, a notification mechanism as its information transmission mechanism.
以ogsa作为体系结构的网格系统中主要采用关系模型作为其信息模型,采用通知机制作为其信息传递机制。
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。
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)。
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。
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。
the core approach of this article is a step-by-step tutorial that illustrates how to write rules for a concrete example: a uml (unified modeling language) to relational model transformation.
本文实际上是一个阐明如何为一个具体例子书写规则的循序渐进的指南,而这个具体例子是指从一个uml(统一建模语言)转变为关联模型。
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标準的关系模型。
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。
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db2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。
osworkflow has a simple relational model and by using pentaho you can create a portal, call a bam (business activity monitoring) portal.
osworkflow有一个简单的关系模型,通过使用pentaho,您可以创建一个bam(业务动作监控businessactivitymonitoring)portal。
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。
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sqlserverapis与工具。
on the other hand, no major production database has ever fully implemented the relational model anyway, the cries of the relational purists not withstanding.
然而,当今,还没有任何一种主流产品数据库能够完全实现关系模型,追求纯粹的关系是不现实的。
all of this violates the relational model in about half a dozen different ways.
所有这些均从不 同的方面违背了关系模型。
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。
example: a uml to relational model transformation
例子:一个uml到关联模型的转换
this relational model of the paths between the main work areas of the kitchen describes a triangle between storage, preparation with cleaning and the cooking area.
这个关于厨房主要工作区域之间的路径的思维模式指的是介于储备、準备及清洗和烹饪之间的三角地带。