Oracle OCP 1Z0 053 Q570( point-in-time recovery)
570.What methods of point-in-time recovery are available? (Choose all that apply.)
A. Change-based
B. Cancel-based
C. Time-based
D. Sequence number-based
E. Transaction number-based
Answer: ABCD
參考:http://blog.csdn.net/leshami/article/details/7909887(Oracle 基於使用者管理的不完全恢復)
http://blog.itpub.net/17013648/viewspace-1318296/
In an RMAN DBPITR operation,you specify a target SCN,log sequence,restore point,or time.
Cancel-based?
A. Change-based
B. Cancel-based
C. Time-based
D. Sequence number-based
E. Transaction number-based
Answer: ABCD
參考:http://blog.csdn.net/leshami/article/details/7909887(Oracle 基於使用者管理的不完全恢復)
http://blog.itpub.net/17013648/viewspace-1318296/
In an RMAN DBPITR operation,you specify a target SCN,log sequence,restore point,or time.
Cancel-based?
5、不完全介質恢復的幾種型別
基於時間的恢復(Time-based recovery) 將資料恢復到指定的時間點
使用者控制的恢復(Cancel-based recovery) 當使用者提交CANCEL後停止恢復(此選項在使用RMAN時無效)
基於SCN 的恢復(Change-based recovery) 將資料恢復到指定的SCN
按重做日誌序號恢復(Log sequence recovery)將資料恢復到指定的重做日誌序號(僅使用RMAN時有效)
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