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单项选择题In which scenario will you perform a cancel-based recovery？（）

A、 when a tablespace is dropped and you have only RMAN-based backup of the database

B、 when a table is dropped and stored in the Recycle Bin

C、 when you are required to recover an existing table to its previous state

D、 when a tablespace is dropped and you have only a user-managed full backup of the database

  • D

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