The relative complexity of moving from a relational to a schemaless data model depends on your approach: namely whether you start from a relational or a domain-based design. 从关系数据模型迁移到无模式数据模型的相对复杂程度取决于您的方法:即您从基于关系的设计开始还是从基于域的设计开始。
Schemaless storage isn't appropriate to every domain, so it's a good idea to understand why you might choose a document-oriented versus relational approach. 无模式存储并不适用于每一个域,因此这对于了解您为什么可能选择面向文档的关系方法来说是一个好主意。
You generate them from pre-existing relational tables ( sometimes referred to as a "bottom-up" approach). 从已存在的关系表格(有时引用为“自底向上”的方法)中生成它们。
That's all fine and good for the software model, but relational databases take a slightly different approach. 对于软件模型来说,这种表示方法非常合适,但是关系数据库采取的表示方法略有不同。
You might of course use a relational database to store a play and its events instead of the XML approach. 您当然可以使用关系数据库而不是XML方法来存储剧本及其事件。
Managing fuzzy decision table knowledge with the fuzzy relational database approach 利用模糊关系数据库方法管理模糊决策表知识
Relational approach is one of the general corporate political strategies defined by Hillman and Hitt ( 1999). 关系型企业政治战略是HillmanandHitt(1999)定义的两种企业政治战略基本方法之一。
Found on reviewing correlative literatures, this paper argued that the relational approach of corporate political strategy is high frequency in political action, extroversion in management orientation, and recognition government relations, etc. 本文在回顾相关文献的基础上,认为该战略方法具有高频率的政治活动、外向的管理导向以及注重政府关系等特征。
Then, an example showed that group gray relational analysis was suitable for green product evaluation, and moreover gave a scientific and effective approach on the multi-attribute comprehensive evaluation similar to green product evaluation with functionality, balance, difference and universality. 实验研究表明,该方法完全适用于绿色产品的评价,为类似绿色产品评价需体现功能性、均衡性、差异性和广泛性特点的多属性综合评价问题提供了一种有效的方法。
First, we introduce the relational approach of the thesis in general. 第一章是绪论,总述了一下本论文的方法。
In order to deal with this problem, the Object Relational Mapping approach is proposed to unify the objective model and relational model, providing a way of data interchange between objects and relational database. 为解决这一问题而提出的对象关系映射(ObjectRelationalMapping,简称ORM),实现了面向对象模型与关系模型之间的相互映射,提供了对象与关系数据库沟通的桥梁。
This paper adopts the three level case retrieval approach: case indexing, direct matching, and similarity matching. Applying grey relational analysis ( GRA) of grey theory, the paper develops the model of similarity matching approach based on GRA, and gives its example. 本文在采用实例索引、直接匹配和相似匹配三级实例检索策略基础上,应用灰色理论的灰色关联分析方法,建立了基于灰色关联分析的相似匹配方法模型,并给出其算例。
Based on the formal definitions of relational database schema and OWL ontology, the approach follows a set of universal mapping rules from a relational database schema to an OWL ontology. 提出了一种从关系数据库学习OWL本体的方法.该方法在形式化表示关系数据库模式和OWL本体的基础上,遵循从关系数据库模式到OWL本体的一组通用映射规则。
Most of the existing RDF data management systems use relational database to store RDF data. This approach has been difficult to efficiently manage massive data. 现有的RDF数据管理系统大都采用传统的关系型数据库来存储RDF数据,随着RDF数据的爆炸式增长,这种方式已难以高效地管理海量RDF数据。
From the existing ways of coal mine safety warning, fuzzy comprehensive evaluation, AHP, gray relational analysis methods are concerned approach. 从现有煤矿安全预警方法看,模糊综合评价、层次分析、灰色关联分析方法都是学者关注的方法。
At present, the vast majority of the relational model of data is stored in relational databases, object-oriented approach is not suitable for direct access. 而目前绝大多数的数据是以关系模型形式存储于关系数据库中,不适合用面向对象方法直接进行访问。
The Civil Aviation in major information systems currently accumulated a lot of historical operating data, but many remain in traditional relational database approach to the statistical reports, etc., only for data query, statistical and other functions. 虽然民航目前在各大信息系统积累了大量的历史运行数据,但许多系统仍然以传统的关系数据库中的统计报表等方式进行,只是实现数据的查询、统计等功能。