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单项选择题You want to put a specific tablespace called MY_DATA in hot backup mode so you can back it up. What command would you use？（）  

A、 alter tablespace MY_DATA begin backup

B、 alter tablespace MY_DATA start backup

C、 alter tablespace MY_DATA backup begin

D、 alter MY_DATA begin backup

E、 You cannot back up individual tablespaces

  • A

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