下图阐述了差异增量备份的概念。
The diagram below illustrates the concept of differential incremental backup.
图65阐述了累积增量备份的概念。
Figure 65 illustrates the concept of cumulative incremental backup.
增量备份意味着仅对更改进行备份。
Oracle提供了两种类型的增量备份。
There are two types of incremental backups provided by Oracle.
注意，允许进行组合数据库和表空间增量备份。
Note that the combination database and table space incremental backups are permitted.
个或1个增量备份。
在需要的时候，可以重复这个过程来添加增量备份。
This process could be repeated to add the incremental backups if required.
dump的一个有趣特性是其内置的增量备份功能。
An interesting feature of dump is its built-in incremental backup functionality.
如果一个页面未发生任何更改，增量备份就会跳过它。
If nothing changes on the page, the incremental backup skips it.
还可以使用脚本来执行更精细的操作，比如增量备份。
Scripting can also be used to perform much more elaborate actions such as incremental backups.
下面的例子显示了如何为SAMPLE启用增量备份？
The following example shows how you would enable incremental backup for the SAMPLE database.
本文讨论对数据仓库的最大备份改进之一——增量备份。
This article discusses one of the most powerful backup improvements for data warehouses - incremental backup.
增量备份是自最近成功的完全备份以来所有更改的备份。
An incremental backup is a backup of all changes since the most recent, successful, full backup.
要恢复增量备份，只需要两步，恢复增量数据库并前滚。
To recover from the incremental backup, there are only two steps to follow, Restore the incremental database and roll forward to completion.
增量备份是最近一次成功的全备份以来的所有修改的备份。
An incremental backup is a backup of all changes since the most recent successful, full backup.
差异备份以上一次的增量备份或差异备份为基础。
Delta backups are based on the last incremental or delta backup.
这很容易解决，您只需要从增量备份中提取昨晚的版本即可。
No problem, all you need to do is grab the version from last night from the incremental backup.
增量备份(1级和2级)将有以下与之关联的备份对象名称。
Incremental backups (Level 1 and 2) will have the following backup object names associated with them.
增量备份允许只备份自上一次备份以来发生变化的索引和数据页。
Incremental backup allows you to back up only index and data pages that have changed since a previous backup.
增量备份非常合理，因为它们减少了还原数据库服务器所需的时间。
Incremental backups are reasonable because they reduce the time needed to restore the database server.
从这个图中可以看到，增量备份实际上是以上一次的完全备份为基础。
From this figure you can see that an incremental backup is really based on the last full backup.
要指定是否对数据库启用增量备份，需要使用TRACKMOD配置参数。
To specify whether incremental backup is enabled for a database, you use the TRACKMOD configuration parameter.
注意，您可以手动恢复完全备份，应用星期六的增量备份映像并进行前滚。
Note that you can restore either a full backup manually, apply the Saturday incremental backup image and roll forward.
用于支持增量备份的跟踪特性完全是内部的，不需要考虑任何存储方面的因素。
The tracking feature used to support incremental backup is entirely internal and doesn't require any storage considerations.
降低了备份时间，因为附件所用的单独存储空间可以进行增量备份。
Reducing backup times because the separate storage space used for attachments can be incrementally backed up.
这命令有多个选项，您可以选择进行完整备份或增量备份，脱机备份或联机备份。
You have several options for these commands to enable you to do full or incremental backups, either offline or online.
增量备份就是对最近一次数据库全备份以来所有修改了的数据进行备份。
Incremental backup is a backup of all of the data that has changed since the last full database backup.
保存系统中重要(以及用户)文件的增量备份是防止这种灾难出现的一种重要方法。
Keeping incremental backups of the system's important (and user) files is an important way of preventing this sort of disaster.
对DAOS储存库做了初次备份后，可在需要时对nsf和nlo文件做增量备份。
After the first backup of the DAOS repository, perform incremental backups as desired of both NSF and NLO files.
这与图1 所示的策略不同，它仅需要一个完整的备份、一个增量备份和日志。
This is different than the strategy shown in Figure 1, which requires you to have only one full backup, one incremental, and logs.
应用推荐