虚拟区可以通过数据库服务器得到较大扩展，并且可以通过操作系统将虚拟区页移出(page out)磁盘。
The virtual portion is quite expandable by the database server and can be paged out to disk by the operating system.
服务是为在单一区域对象上超越简单CRUD操作的方法而准备的。
Services are for methods that go beyond simple CRUD operations on a single domain object.
在继续操作操作之前，您需要从服务器中删除应用程序，并从工作区中删除所有的项目。
Remove the application from the server and delete all projects from your workspace before proceeding to the next section.
当数据库服务器处于联机状态并执行操作时，如果虚拟区的初始尺寸太小，数据库服务器会自动向虚拟区附加其他操作系统段。
When the database server is online and performing operations, it automatically attaches additional operating-system segments to the virtual portion, if the initial size is too small.
如果您想略过创建服务实现这步操作，那么可以打开工作区，WorkspaceC，然后从第3章继续。
If you want to skip the creation of service implementations, you can open the workspace, WorkspaceC, and continue with chapter 3.
如果您想略过导入该流程和集成现有的服务实现的操作，那么可以打开工作区WorkspaceB，从第2章第10部分继续。
If you want to skip the process import and the integration of an existing service implementation, you can open the workspace WorkspaceB and continue with chapter 2, part 10.
通过单击位于(包含Web服务描述的)工作区底部的TestAdapter附签，可以测试操作，即编辑请求文档并单击Invoke Web Service。
By clicking the test Adapter TAB at the bottom of the canvas containing the Web service description, you can test the operation by editing the request document and clicking Invoke Web service.
当我们收到此操作，我们需要把保存在缓冲区的所有操作组合到一起，然后发送给服务器。
As soon as we receive this operation, we need to compose together any operations which have been held in the buffer and send them off to the server.
获取或设置一个值，该值指示操作执行完成后是否将服务实例从内存中卸载并从永久性存储区中删除。
Gets or sets a value that indicates whether the service instance will be unloaded from memory and deleted from persistence once the operation has finished executing.
获取或设置一个值，该值指示操作执行完成后是否将服务实例从内存中卸载并从永久性存储区中删除。
Gets or sets a value that indicates whether the service instance will be unloaded from memory and deleted from persistence once the operation has finished executing.
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