This article introduces the concept and model of a component catalog database to manage the component database.
论文为管理分布式构件库提出了构件目录库的概念和模型。
To improve the speed and accuracy in component retrieval from software component database, BP network was introduced in the research of component searching.
为了提高从软件构件库中搜索构件的速度和准确率，利用误差反向传播神经网络(BP网络)研究了构件的搜索问题。
For example, you can create database tables during installation so that the component can store application data.
例如，您可以在安装期间创建数据库表以便组件可以存储应用程序数据。
The Database will be notated as a UML component in the class diagram (shown in Figure 2).
数据库将会在类图中被表示为一个UM l组件(如图2所示)。
As the core component of most applications, the database is critical for multi-tenancy in terms of scalability.
作为很多应用程序的核心部件，数据库对于多租户的可伸缩性是至关重要的。
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。
A security label component is a new database entity that can be created, dropped, and altered.
安全标签组件是一个新的数据库实体，可以被创建、删除和修改。
In my case, I used the file in listing 4 to seed the database before running my component tests and then used the same file to indicate which data to delete from the database upon test completion.
在本文的例子中，将在运行组件测试前使用清单4中的文件在数据库中播种，然后使用相同的文件指示测试完成时从数据库中删除哪些数据。
You can end up with an extremely large number of databases if you choose to create a separate database for each component that needs it.
如果选择为每个需要的组件创建单独的数据库，那么结果可能会产生数量极大的数据库。
You may end up with an extremely large number of databases if you choose to create a separate database for each component that needs it.
如果选择为每个需要的组件创建单独的数据库，那么结果可能会产生数量极大的数据库。
This is impossible when the component is reading data from a database because in this case, the number of items in the shopping cart is unknown before it's read.
当组件正在从数据库中读取数据时这是不可能的，因为在本例中，购物车中的条目数量在读取前是未知的。
When an EJB component wants to access a database, a message queue server, or some other transactional resource, it acquires a connection to the resource manager (usually by using JNDI).
当一个EJB组件想访问数据库、消息队列服务器或者其它一些事务性资源时，它需要到资源管理器的连接(通常是使用JNDI)。
A sample EAR file with an EJB component that maintains multiple database mappings is available for download.
包含一个用于维护多种数据库映射的EJB组件的示例EAR文件可供下载。
Correlated with the data in Table 4, which indicates that the database server is the least-used component in the system, either database vendor will provide the highest level of performance.
与表4中的数据相联系，可以指示数据库服务器是系统中最少使用的构件，数据库通道也可以提供最高层次的性能。
If a user is not permitted to access a database that contains a component, allowing the user to access a page with that component does not give him or her access to that database.
如果不允许用户访问包含组件的数据库，那么可以允许他访问含有该组件的页面，但同时又不能访问数据库。
It is common to define an EJB component to correspond to a row in a database, where each persisted variable in the EJB component corresponds to a field (column) in the row.
通常是定义一个对应于数据库中一行的EJB组件，其中EJ b组件中的每个持久性变量对应于行中的一个字段(列)。
In the pattern shown in Figure 2, a link specifies that the enterprise application has a dependency on the database component in the pattern.
在图2所示的模式中，链接指定该企业应用程序依赖于该模式中的数据库组件。
In addition to this, it has a database (DB2) component.
此外，它还具有数据库(DB2)组件。
Now we have a mapping of the EJB component to the table in the database, and we have mappings of the variables to the fields in the table.
现在我们有EJB组件对数据库中表的映射，还有变量对表中字段的映射。
The database buffer pool(s) area is normally the largest component of the database shared memory.
数据库缓冲池通常是数据库共享内存中最大的一块内存。
The SQL component of DB2 operates in the database code page.
DB2的SQL组件在数据库代码页中操作。
Delete the Database component (this action will also remove the associated link), add the Existing Database (DB2) component and re-establish the link as shown in Figure 21.
删除数据库组件(该操作还会删除相关的链接)，然后添加现有的数据库(DB2)组件并重新建立如图21所示的链接。
This component of the OAT is extremely attractive from the database administrator's point of view.
这个OAT组件对数据库管理员非常有意义。
This information is used when you augment the virtual application with the Existing Database component.
当您使用ExistingDatabase组件扩展虚拟应用程序时，请使用此信息。
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。
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WebSphereApplicationServer，从而创建对Database组件的支持。
The Repository component maps storage models to relational database schemas and tables.
Repository组件将存储模型映射到关系数据库模式和表。
The ideal scenario would be for the component to configure its database requirements as part of its installation process, which the consumer initiates using the Zero command-line interface.
最理想的情况是此组件可以作为其安装过程的一部分来配置其数据库需求，而安装过程是用户通过使用Zero 命令行界面发起的。
A component could be something like a database, Web or file server, or some proprietary software.
组件可以是数据库、Web或文件服务器，也可以是某些专有软件。
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