[Oracle] supports ledba22 cancel-based recovery, cwmbasedrecovery

Source: Internet
Author: User

[Oracle] supports ledba22 cancel-based recovery, cwmbasedrecovery

The current time is 12: 00 noon. You want to recover the USERS tablespace

From a failure that occurred at :50 a.m. You discover that

The only member of an unarchived redo log group containing information

From a.m. onwards is wrongly upt.

With reference to this scenario, if you are not using Recovery Manager (RMAN ),

Which recovery method wocould you use?

A. time-based recovery

B. log sequence recovery

C. cancel-based recovery

D. change-based recovery

Answer: C

When restoring with recover database until cancel, you can press enter until there is no archive

Log files are available until (in this case, if all online log files are archived

All data can be restored). You can also enter CANCEL during the restoration process to use part of the archived log files.

In this case, only part of the data can be recovered ).

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