restore backup

基本解释

PREVIEW command to report, but not restore, the backups that RMAN could use to restore to the specified time.
PREVIEW命令来看看RMAN能够用来恢复到指定时间的备份，但是这时还没有进行恢复。
This feature allows performing continuous restore of logical log backups using the ontape and ON-Bar utilities.
该特性允许使用 ontape 和 ON-Bar 实用程序执行逻辑日志备份的连续恢复。
We regularly download the latest database backups and restore them locally (we develop against live data all the time), so we know our backups work.
我们有规律地下载最新的数据库备份并在本地恢复它们（我们总是针对真实数据进行开发），从而我们知道我们的备份是有效的。

Why there weren't any backups -- even older ones -- that could've been used as a restore point is totally unclear, so we're hoping Microsoft has the stones to come clean for the benefit of an entire industry that wants to understand how to make sure this never happens again.
ENGADGET: Sidekick failure rumors point fingers at outsourcing, lack of backups