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Ò»¸öÖ÷±íblog²©¿Í±í,
DROP TABLE IF EXISTS  `blog`;
CREATE TABLE `blog` (
  `id` int(11) NOT NULL auto_increment,
  `title` varchar(11) default NULL,
  `content` varchar(11) default NULL,
  PRIMARY KEY  (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=gb2312;
   ÁíÒ»¸ö±ícomment,ÆÀÂÛ±í
   ²©¿Í±íºÍÆÀÂÛ±í¹ØϵÊÇ1:N
 
drop table comment;
create table comment(
 id       int primary key,
 user     varchar(11),
 email    varchar(11),
 url      varchar(11),
 content  varchar(11),
 addTime  date,
 blog_id  int,
 constraint FK_blog_id foreign key (blog_id) references blog(id)
)ENGINE=InnoDB DEFAULT CHARSET=gb2312;  
 
    ×¢Ò⣬һ¶¨Òªvarchar(11)£¬Òª²»È»¾Í´íÁË£¬ÎÒÊǸù¾ÝÒÑÓÐ±íµ¼³ösql²Å¿´³öÀ´µÄ£®
    Õâ¸ösqlÓï¾äÓÃsql-frontµ¼³öºóµÄ½á¹ûÊÇ:
DROP TABLE IF EXISTS `comment`;
CREATE TABLE `comment` (
  `id` int(11) NOT NULL,
  `user` varchar(11) default NULL,
  `email` varchar(11) default NULL,
  `url` varchar(11) default NULL,
  `content` varchar(11) default NULL,
  `addTime` date default NULL,
  `blog_id` int(11) default NULL,
  PRIMARY KEY  (`id`),                        
  KEY `FK_blog_id` (`blog_id`)                        
) ENGINE=InnoDB DEFAULT CHARSET=gb2312;                        
ALTER TABLE `comment`
  ADD FOREIGN KEY (`blog_id`) REFERENCES `blog` (`id`);