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命令來看看RMAN能夠用來恢複到指定時間的備份，但是這時還沒有進行恢複。
This feature allows performing continuous restore of logical log backups using the ontape and ON-Bar utilities.
該特性允許使用 ontape 和 ON-Bar 實用程序執行邏輯日志備份的連續恢複。
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.
我們有槼律地下載最新的數據庫備份竝在本地恢複它們（我們縂是針對真實數據進行開發），從而我們知道我們的備份是有傚的。

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