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单项选择题Which of the following is a valid way of putting a tablespace named DAVE_TBS into hot backup mode?()

A、alter tablespace DAVE_TBS backup mode

B、alter tablespace DAVE_TBS start backup 

C、alter tablespace DAVE_TBS begin backup 

D、alter tablespace DAVE_TBS backup begin 

E、alter tablespace DAVE_TBS backup

  • C
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