stuName varchar(50) not null, stuNo varchar(50) primary key not null, stuSex char(2) default '男' check(stuSex = '男' or stuSex = '女') not null, stuAge int check(stuAge between 15 and 50) not null, stuSeat int identity(1,1) not null, stuAddress varcha
You code. And code. And code. You build only to rebuild. You focus on making your site compatible with almost every browser or wireless device ever put out there. Then along comes a new device or a new browser, and you start all over again. You can