您可能对数据库成功地进行了规范化(请参阅参考资料),但是现在表中的列与软件模型就失去了同步。
You may have successfully normalized the database (see Resources), but now the columns in the table are out of sync with your software model.
第二种是“以对象为中心”的方法,从业务模型和创建数据库来持久化这个模型开始。
The second is an "object-centric" approach, which starts with a business model and creates a database to persist the model.
逆向工程提供了连接数据库的功能和可以译成可视化模型的源代码。
Reverse engineering provides the ability to connect to databases and source code, which you can then render into visual models.
RDA还通过物理数据模型的摘录支持被部署的数据库的可视化。
RDA also supports visualization of deployed databases through the extraction of physical data models.
在精化阶段,我会建议将概念模型中的业务实体映射到遗留系统中的源数据库。
During the Elaboration phase I would suggest mapping business entities within the conceptual model to the source databases within the legacy systems.
这种隔离层对于SOA来说非常重要,这是因为它使得数据库厂商的产品、OS平台、信息位置、数据格式以及物理数据模型透明化。
The insulation layer is extremely important to SOA because it allows transparency of database vendor products, OS platforms, information location, data format, and a physical data model.
规范化数据模型的目的不是将数据建模限定在单个的数据库和它的相关物理数据模型上。
The objective is not to limit data modeling to a single database and its related physical data model.
用数据库搜索来检索结构化且严格匹配的数据十分管用,但这需要对查询结构和数据模型十分熟悉和了解才行。
Database search is great to retrieve structured and exactly matched data, but it requires highly specialized knowledge on query construction and data model familiarity.
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.
它提供了模型化的框架,能够让开发人员为数据库架构定义一个与真实世界信息相似的概念化的模型。
This provides a modeling framework that enables developers to define a conceptual model of a database schema that closely aligns to a real world view of the information.
根据数据库产生模型(提供向导),并以图形化展示给用户。
Generate a model from a database (via wizard) and display it on the designer surface.
为了根据不同的国家和语言构建单个多维数据集模型,需要将本地化数据存储在不同语言的数据库中,如图8所示。
To build the individual cube model according to the country and language, store localized data in database in different languages, as illustrated in Figure 8.
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.
实际的应用程序会从数据库中获得模型的数据,但为了简便起见,OrderBean将由一个静态数组初始化。
A real application would retrieve the model's data from a database, but for simplicity, OrderBean is initialized from a static array.
这个可视化的建模器和VisualStudio 2008整合在一起,开发人员可以借此通过从服务器资源管理器(ServerExplor)拖拉数据库表来创建模型。
The visual modeler is integrated with Visual Studio 2008 allowing developers to create the model by dragging database tables from the Server Explorer.
LightSpeed 2.0包含一个和VisualStudio 2008相整合的可视化域模型设计器,支持LINQ,并可以同步访问多个数据库。
LightSpeed 2.0 includes a visual domain model designer integrated with visual Studio 2008, support for LINQ and the ability to access multiple databases concurrently.
数据库中有OrderItems表,但是对象模型中并没有与之对应的持久化的类。
The object model has an Address class that has no corresponding table in the database, and the database has an OrderItems table that has no corresponding class.
此抽象及可视化主题可以在数据库模型、XMLschemas和Web服务描述语言(Web Services Description Language,WSDL)文档上应用(参见图3)。
This abstraction and visualization theme continues with database models, XML schemas and Web Services Description Language (WSDL) documents (see Figure 3).
为了说明如何导入和持久化模型,我将WordNet 1.6数据库的RDF表示导入到MySQL中。
To demonstrate how to import and persist a model, I'm going to import into MySQL an RDF representation of the WordNet 1.6 database.
本书中我们使用数据库初始化器在每次模型变化时来删除和重建数据库。
Throughout this book we have used database initializers to drop and recreate the database every time the model changes.
扩展存储过程缓存无效化模型的原始目标是,开始对数据库缓存无效化问题进行一些早期的原型化工作。
The original goal of the extended stored procedure cache invalidation model was to begin some early prototyping of the database cache invalidation problem.
您可能对数据库成功地进行了规范化(请参阅参考资料),但是现在表中的列与软件模型就失去了同步。
You may have successfully normalized the database (see Resources), but now the columns in the table are out of sync with your software model.
在这里我们描述了面向实体的知识表示模型、数据库到知识库的转换、知识库的实例化、规则编辑器以及数据校验算法。
Here we describe knowledge representation model oriented entity, database conversion, instantiation of the knowledge base, rule editor and data check-up algorithm.
由于对象模型和关系模型之间存在一种基本的阻抗不匹配,导致使用关系数据库的面向对象系统开发人员通常要花费大量的时间来将对象持久化。
Because a kind of basic mismatch exists between object model and relation model, it leads to that object systematic developer spend a large amount of time taking object persistent.
论述了课表编排系统数据库的概念模型、逻辑模型以及物理模型的设计和规范化设计。
Discusses the designs of concept models, logic models, physical models and standardization of the database in timetable planning system.
在分词技术、索引技术、结构化查询语言技术的基础上,提出了一个基于XML文档数据库的信息检索系统,这一系统模型主要由分词模块、索引模块及查询模块组成。
This paper puts forward an information retrieval system based on XML documents database on the foundation of segmentation technology, index technology and structured query language technology.
(模型先行):先从一个可视化模型开始,然后实体框架生成数据库和代码。
Model-first : You start with a visual model, and Entity Framework generates both the database and code.
利用GIS的数据库功能,将参数化过程中提取的模型参数纳入到数据库中统一管理。
Using GIS database function, the model parameters extracted from the process parameterization were managed in the database.
关系型数据库的逻辑模型进一步规范化这些实体和关系,并形成带有主外键约束的表。
The logical model for a relational database normalizes the entities and relationships into tables with foreign key constraints.
文章就U P识别关键任务、业务模型到数据库模型、UP产品实例化等几个问题阐述了几点新想法和解决方案。
This article expounds a few new viewpoints and solutions on UP identifying the key business, business model arriving database model and UP products instantiation.
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