单选题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 backupB alter tablespace MY_DATA start backupC alter tablespace MY_DATA backup beginD alter MY_DATA begin backupE You cannot back up individual tablespaces
单选题
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
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