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You lost the PRODSTD tablespace， which was read/write. The tablespace was read/x7fonly when the last backup was performed. How would you recover the tablespace？（）
A:restore the tablespace from the backup; there is no need to apply the redo information 
B:restore the full database to recover the data up to the point when you performed the backup 
C:restore the tablespace from the backup， and then perform a recovery using the backup control file
D:restore the tablespace from the backup， and then recover the tablespace; all the redo information from the point when the tablespace was made read/write is applied

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出自：Oracle认证

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