对于联机备份数据文件，这将导致生成大量的重做日志。
This will result in enormous redo logs to be generated for online backup data files.
它们必须是可靠和直观的，以便于安排定期备份和在必要时检索文件。
They must be dependable and intuitive, making it easy to schedule regular backups and to retrieve files in a pinch.
尽管这些存储介质中有许多具有高容量，但具有压缩能力的备份工具是一大优势，它消除了多个磁盘或大型上传的不便。
Although many of these storage media have high capacity, a backup tool with compression capabilities is a big plus, eliminating the inconvenience of multiple disks or large uploads.
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.
请注意这两个部分是如何依赖于无线电遥控元件的超可靠的备份技术的。
Note how both these parts rely on R/C components as the ultra-reliable backup technology.
增量备份意味着仅对更改进行备份。
恢复离线备份与进行备份一样简单。
指定备份选项。
备份条件：指定自动备份应在何时计划备份。
Backup criteria: Specifies when automatic backup should consider scheduling a backup.
冷备份或离线备份。
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.
当然，所有备份都是可恢复的，但是备份每次都成功完成了吗？
Of course, all backups are recoverable, but does this backup complete successfully each time?
完全备份——备份整个数据库，包括所有的文件组合事务日志。
Full backup — Backs up the full database, including all file groups and transaction logs.
应该对备份进行例行检查，以保证备份过程工作正常。
You should routinely check your backups to ensure that the process is working correctly.
联机备份与脱机备份不同，它允许用户执行正常任务。
An online backup, unlike the offline backup, allows users to carry on with their normal tasks.
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.
离线备份实现起来要简单得多，但要求停止应用程序才能创建备份。
Offline backups, much simpler to implement, requires that the application be stopped to create a backup.
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.
这种备份方式的含义就是，仅能还原最后一次完整的脱机备份。
The implication of this backup method is that you can only recover to the last complete offline backup.
与脱机备份不一样，联机备份只要求备份数据文件和控制文件。
Unlike offline backup, online backup only requires that data files and control files be backed up.
备份，备份，再备份——确保自己有一套可靠的方式备份文件。
Backup, backup, backup - Make sure you have a reliable way of backing up your data.
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.
差异化备份——只对上次完全备份之后有过更改的页面进行备份。
Differential backup — Backs up all of the modified pages in a database after the last successful full backup is completed.
备份目标和目标选项：指定放置备份的位置以及备份目标的任何选项。
Backup target and target options: Specifies the location where the backup will be placed and any options for the backup target.
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.
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.
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