以下哪个命令是使用超级管理员身份创建普通账户（）<br>A．create user username@localhost identified by 123456<br>B. create user ‘username’@ ‘localhost’ identified by 123456<br>C. create user username@localhost identified by ‘123456’<br>D. create user ‘username’@‘localhost’ identified by ‘123456’

以下哪个命令是使用超级管理员身份创建普通账户（）
A．create user username@localhost identified by 123456
B. create user ‘username’@ ‘localhost’ identified by 123456
C. create user username@localhost identified by ‘123456’
D. create user ‘username’@‘localhost’ identified by ‘123456’

出自：国家开放大学数据库运维

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