向student表中添加某一列address的命令是()
A、alter table studentadd address varchar(50)
B、add address varchar(50)
C、insert into address varchar(50)
D、insert into student address varchar(50)
发布时间:2025-06-18 07:18:54
A、alter table studentadd address varchar(50)
B、add address varchar(50)
C、insert into address varchar(50)
D、insert into student address varchar(50)