多项选择题

若要将mysql的管理员root密码设置为123,那么下列操作正确的是()

A.set password for root@'localhost'=password('123');
B.update mysql.user set password=password('123') where user='root' and host='localhost';
C.select password for root@'localhost'=password('123');
D.create user root@'localhost' identified by'123';

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