介绍了一个关系模型数据库应用程序的开发以及该数据库在环境试验中的应用。
This paper presents how to exploit the application program of a Relational Model Database, and how to use the Relational Database on environmental testing.
数据库模型：包括SOA使用的数据库的实体关系图。
Database model: Includes an entity relationship diagram for the databases the SOA USES.
YQL使用人们熟悉的表格与行的关系数据库模型。
YQL USES the familiar relational database model of tables and rows.
模型是一个关系数据库。
在展开数据库模式模型时，可以看到关系表和列。
When you expand the database schema model you can see the relational tables and columns.
相反，规范化数据模型是SOA包含的所有数据库和相关遗留应用程序中的所有实体及其关系的参考。
Rather, the canonical data model is the reference for all of the entities and their relationships across all of the databases and related legacy applications that the SOA encompasses.
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。
That's all fine and good for the software model, but relational databases take a slightly different approach.
我们使用访问XML文件服务和关系数据库的例子来进一步说明由SDO推动的编程模型的简单性。
We further illustrate the simplicity of the programming model promoted by SDOs with examples of access to an XML file service and to a relational database.
这样使得在关系数据库模型中导入外键更方便。
This makes importing foreign keys easier in relational database models.
优秀的关系数据库人员和对象模型设计者可能具有相互竞争的目标，从而使得其各自的实现也具有很大的差异。
Good relational database practitioners and object model designers can have competing goals that make their respective implementations quite different from each other.
了解关系数据库、数据模型、惟一键、主键、外键和表联结。
Learn about relational databases, data models, unique keys, primary keys, foreign keys, and table joins.
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 relational data model and use of the SQL language allows for enterprise level performance and scalability.
模型需要匹配源XML或关系数据库中存在的类型、属性和关系，需要将此信息指定给DAS。
The model needs to match the types, properties, and relationships that exist in the source XML or relational database, and this information needs to be specified to the DAS.
即便是中等复杂程度的关系数据库，设计的东西也和对象模型不同。
When you start to get into even intermediate complexity in your relational database, you'll design things differently than you would with an object model.
Repository组件将存储模型映射到关系数据库模式和表。
The Repository component maps storage models to relational database schemas and tables.
Jena可以在文件系统中或在关系数据库中持久化它的模型。
Jena can persist its models on the filesystem, or in a relational database.
RationalRoseXDE软件提供了用于创建并维护描述项目体系架构、过程流、逻辑组件关系和数据库设计的uml模型的工具。
Rational Rose XDE software provides tools for creating and maintaining UML models that depict project architecture, process flow, logical component relationships, and database design.
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。
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.
您会发现Node - Arc - Node关系(三元组)比关系数据库模型更易于理解。
You may find Node-Arc-Node relationships (triple) easier to understand than relational database models.
Hibernate和TopLink等工具大大简化了把对象模型映射到关系数据库模式的过程。
Tools such as Hibernate and TopLink have made it much easier to map an object model into a relational database schema.
年代，E . F . Codd与其他一些人通过严格的数学工作创造了现在无处不在的关系数据库模型。
In the 1970s, the rigorous mathematical work of E. F. Codd and others created the now-ubiquitous relational database model.
SQLAzure的基础是关系数据库模型、提供了对约束、事务、临时表以及存储过程的完整支持。
SQL Azure is based on the relational database model, complete with constraints, transactions, temporary tables, and stored procedures.
与关系数据库相比，面向对象模型支持更丰富的关系
Richer relationships allowed by object orientation that aren't supported by relational databases
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。
They are relational databases that provide the strengths of the relational model and its set processing.
这是将对象模型映射到关系数据库模型的一种典型框架。
This is typical of frameworks that map object models to relational database models.
总之，种种约束限制了关系数据库系统的灵活性，并因此限制了系统用户在数据库内部实现复杂、交互式模型的能力。
Overall, these restrictions limit the flexibility of relational database systems and, thus, the ability of users of such systems to implement complex, interactive models within the database itself.
在DM中，每一个属性和关系都是在模型中声明，然后作为可信的来源使用，而不是需要将这些属性关系存储到数据库中。
In DM every property and relationship is declared in the model, and that is used as the authoritative source rather than the database.
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。
Although this data could be stored in a relational database, it fits well with the documented-oriented model too, don't you think?
使用Viper 的混合模型，我们看到的是一个转折点与关系型数据库出现时的意义一样重大。
With Viper’s hybrid model, what we’re seeing is an inflection point every bit as significant as when relational databases appeared.
您可能需要通过使用逆向工程(reverse engineering)技术构造源数据模型，从而从现有的源数据库中开发实体和关系(Entity and Relation,er)模型。
You might need to construct the source data models by using reverse engineering techniques, developing Entity and Relation (er) models from existing source databases.
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