• Create Table sys_Teacher --教学在线教师数据表• (• ID varchar(50),• Name varchar(50),• Pass varchar(50),• Directory varchar(200), --虚拟目录• ShowUp varchar(2) default '是 ', --是否显示上传• ShowWeb varchar(2) default '是 ', --是否显示网页• UpFileCoverage varchar(2) default '是 ', --上传文件是否覆盖

• ClickNum int default 0,• IsAdmin varchar(2) default '否 ', --是否为管理员• Check (ShowUp='是 ' or ShowUp='否 '),• Check (ShowWeb='是 ' or ShowWeb='否 '),• Check (UpFileCoverage='是 ' or UpFileCoverage='否 '),• Check (IsAdmin='是 ' or IsAdmin='否 '), • Primary Key(ID)• )

• 学生数据表• Create Table sys_Student

• (

• ID varchar(50),

• Name varchar(50),

• Pass varchar(50),

• Class varchar(200),

• Primary Key(ID)

• )

• 登录视图• Create View v_sys_Login(ID, Name, Pass,

Kind, IsAdmin)

• AS

• Select ID, Name, Pass, 'T', IsAdmin From sys_Teacher

• Union

• Select ID, Name, Pass, 'S', '否 ' From sys_Student

• GO