Distributed Database Access Component and It's Application in EC

If you haven't noticed, note that the Database component property Resource reference of Data Source and the User Registry component property Role Name have preconfigured options derived from your enterprise application.

如果您还没有注意到，请注意，Database组件的属性Resource reference of Data Source和User Registry组件的属性Role Name都有预先配置的选项，这些选项是企业应用程序派生的。

It works like this: You create a new virtual application, drag and drop the Enterprise Application component and a Database component and link them together on the Virtual Application Builder canvas.

它的工作原理是这样的：您创建一个新的虚拟应用程序，拖放Enterprise Application组件和一个Database组件，并在Virtual Application Builder画布上将它们链接在一起。

For example, certain components in the Web Application pattern type support links to other components in other pattern types, such as to a Database component in the IBM Database Patterns type.

例如，web application模式类型中的某些组件，支持链接到其他模式类型中的组件，比如IBM Database Patterns类型中的Database组件。

In the data collection subsystem, the development technology based on components is applied. According to the features of information system, a database component and a report data upward component has been designed.

在数据采集子系统中，采用了基于组件的开发技术进行设计，针对信息系统的特点，设计了数据库组件和报表数据上传组件。

The whole drilling risk assessment system is made up of the evaluation system of the process of preparation before drilling 、 drilling 、 tripping and so on and integrated database component.

整套钻井作业风险评价系统由钻井过程的钻前准备、钻进、起下钻等各作业过程的子评价系统及综合信息库组成。

Some people only need a simple way of storing basic record data, while others want to build a mini-application using the database component as the core.

一些人只需要存储基本记录数据，而另一些人则希望使用数据库组件作为核心来构建微型应用程序。

At deployment time the JNDI name you specified will be linked to the one WebSphere Application Server creates to support the Database component.

在部署时，指定的JNDI名称会链接到某个Websphere Application Server，从而创建对Database组件的支持。

For example, you create a new virtual application, drag and drop the Enterprise Application component and a Database component and link them together.

例如，创建一个新的虚拟应用程序，拖放企业应用程序组件和数据库组件，并将它们链接在一起。

Additionally, categories can be selected in the tag cloud and that focus passed back to the discussion database component view.

此外，可以在标记云中选择类别，并将这个信息传回到讨论数据库组件视图中。

Drilling down into the database component shows how the reusable component might be configured ( see Figure 4).

下钻到数据库组件就可以看到可重用组件的配置方式（参见图4）。

This scenario highlights this ability by augmenting the virtual application with the Existing Database component.

这种情况凸显了通过使用Existing Database组件来扩展虚拟应用程序的能力。

The paper emphasizes the exchange method of table structure and data information in table, which is based on database component.

文章着重阐述了基于数据库组件的数据库表结构的转换方法和数据信息的转换方法。

Configure the Database component by specifying a name and size of the database.

通过指定数据库的名称和大小来配置数据库组件。

You've augmented your virtual application to use an Existing Database component over a Database component.

您已经扩展了虚拟应用程序，从而可以使用Database组件之上的Existing Database组件。

This information is used when you augment the virtual application with the Existing Database component.

当您使用Existing Database组件扩展虚拟应用程序时，请使用此信息。

Implementation of Database Component Based on CORBA

基于CORBA的通用数据库访问构件的实现

The system used DCOM as basic structure with real-time database component as the core.

以实时数据库组件为核心，在现场数据通信问题上采用OPC规范。

The existing database component and the link each have a template.

现有数据库组件和链接各有一个模板。

Database selection. front-end tool selection and the safe connection between internal network and international network.

包括：网络选型、数据库选型、前端工具选择和内部网络与国际互联网的安全连接几个部分。

Traditionally, to get data all the way from the database to the front end, you need to write a class for each table in the database with all the create, read, update, and delete ( CRUD) methods.

以前，为了获取从数据库到前端的所有传输方法的数据，要使用所有创建、读取、更新和删除（CRUD）方法为数据库中的每个表编写一个类。