JSP新闻系统跟我学之一数据库设计

数据库设计;
 

Create database news go use news go Create table t_user ( id int identity(1,1)primary key, username varchar(20)unique not null, pwd varchar(20), email varchar(30), address varchar(50), hobby varchar(30) ) insert t_user select 'admin','admin','admin@sohu.com','北京景山','paly' union select 'user','user','user@sohu.com','上海市浦东新区','swim' Create table t_topic ( id int identity(1,1)primary key, tname varchar(50), createtime datetime ) insert t_topic select '国际',GETDATE() union select '国内',GETDATE() union select '财经',GETDATE() union select '体育',GETDATE() union select '科技',GETDATE() select * from t_topic Create table t_news ( id int identity(1,1)primary key, tid int foreign key references t_topic(id), title varchar(100), author varchar(20), createtime datetime, ncontent nvarchar(2000), modifytime datetime, summary varchar(200), pic varchar(50) ) select * from t_topic select * from t_news insert t_news select 1,'人民币','央行',GETDATE(),'人民币利于出口',GETDATE(),'问题','' union select 2,'德国制造4.0','央行',GETDATE(),'制造业牛奔',GETDATE(),'制造','' union select 4,'苹果手机7','央行',GETDATE(),'三星手机爆炸，苹果手机出师不利',GETDATE(),'手机安全','' union select 5,'中国足球','足球',GETDATE(),'功利足球',GETDATE(),'加油','' Create table t_comment ( id int identity(1,1)primary key, nid int foreign key references t_news(id), ccontent varchar(2000), createtime datetime, author varchar(20) ) 
 

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原文链接：aaaedu.blog.csdn.net/article/details/52963157