| 1. | This process is called a copy - on - write operation
此过程称为“写入时复制操作” |
| 2. | The following figure illustrates a copy - on - write operation
下图说明了写入时复制操作。 |
| 3. | The following figure illustrates such a copy - on - write operation
下图说明了此类写入时复制操作。 |
| 4. | In a restore operation , a file that is used during the undo phase to hold a " copy - on - write " pre - image of pages that are to be modified
例如，数据挖掘模型可以指定进程的输入、输出、算法及其他属性，并保存定型活动期间收集的信息，例如，决策树。 |
| 5. | The form of file that is used by a database snapshot to store its copy - on - write data depends on whether the snapshot is created by a user or used internally
数据库快照存储其“写入时复制”数据时所用的文件格式取决于快照是由用户创建，还是在内部使用： |
| 6. | Performance is reduced , due to increased i o on the source database resulting from a copy - on - write operation to the snapshot every time a page is updated
源数据库的性能受到影响。由于每次更新页时都会对快照执行“写入时复制”操作，导致源数据库上的i / o增加。 |
