关于新闻，在线编辑器建表时此字段一定要为text

create table about(
	content text
)engine=myisam default charset=utf8;

项目的各个建表语句

create database day456 default charset utf8;
create table user(
)engine=myisam default charset=utf8;
select * from stu;
use day456;
drop table user;

use day456;
select * from user;
truncate user;
use hnscdb;
select * from hnsc_guestbook;

drop table hnsc_guestbook;

create table hnsc_guestbook(
   id int unsigned auto_increment,
   gname varchar(50),
   content text,
   gsex varchar(5),
   gtell varchar(20),
   gphpne varchar(20),
   gadress varchar(50),
   gmail varchar(50),
   gtime int,
   gip varchar(15),
   gflag enum('y','n') default 'n',
   primary key(id)
)engine=myisam default charset=utf8;

create table hnsc_zz(
   id int unsigned auto_increment,
   ztitle varchar(200),
   url varchar(200),
   cname varchar(50),
   flag enum('y','n') default 'y',
   primary key(id),
   constraint fk foreign key (cname) references hnsc_zzclass(cname) on delete set null on update cascade
)engine=innodb default charset=utf8;

use hnscdb;

select * from hnsc_zz;

drop table hnsc_zz;

truncate hnsc_zz;

create table hnsc_zzclass(
	cname varchar(50),
	primary key(cname)
)engine=innodb default charset=utf8;

create table hnsc_zz(
    id smallint unsigned auto_increment,
    title varchar(50),
    url varchar(200),
    cname varchar(50),
    flag enum('y','n') default 'y',
    primary key(id),
    constraint fk foreign key (cname) references hnsc_zzclass(cname) on delete set null on update cascade
)engine=innodb default charset=utf8;

select * from hnsc_zzclass;
select * from hnsc_zz;

truncate hnsc_zz;

create table hnsc_newsclass(
	cname varchar(50),
	primary key(cname)
)engine=innodb default charset=utf8;
create table hnsc_news(
    id smallint unsigned auto_increment,
    title varchar(50),
    content text,
    author varchar(200),
    num int unsigned default 0,
    ntime int unsigned,
    cname varchar(50),
    flag enum('y','n') default 'y',
    primary key(id),
    constraint nfk foreign key (cname) references hnsc_newsclass(cname) on delete set null on update cascade
)engine=innodb default charset=utf8;
drop table hnsc_news;
select * from hnsc_newsclass;
truncate hnsc_news;
use hnscdb;
select * from hnsc_link;
drop table hnsc_pro;
create table hnsc_pro(
	id smallint unsigned auto_increment,
	title varchar(50),
	img varchar(200),
	 content text,
	num int unsigned default 0,
	ntime int unsigned,
	flag enum('y','n')default 'n',
	jflag enum('y','n')default 'y',
	primary key(id)
)engine=myisam default charset=utf8;
select * from hnsc_pro;
truncate hnsc_pro;
insert into hnsc_pro(content) values('你好');
insert into hnsc_pro(title,ntime,flag,jflag,content) values('aa',545,'y','n','第三方');
insert into hnsc_pro(title,ntime,flag,jflag,content,img) values('aa','10','y','n','你好','ds.jpg');

use hnscdb;
create table hnsc_user(
	account varchar(50) primary key,
	pwd varchar(50),  -- 密码
	truename varchar(50),-- 真是姓名
	face varchar(200), -- 注册时上传的头像
	why varchar(100), -- 注册时设置的问题
	ok varchar(100),  -- 设置的问题的答案
	rip varchar(15), 
	regtime int unsigned-- 注册的时间
)engine=myisam default charset=utf8;
use hnscdb;
select * from hnsc_user;
drop table hnsc_user;
-- 日志管理表
create table hnsc_userlog(
	id smallint unsigned auto_increment,
	account varchar(50),   -- 账户
	alog varchar(30),      -- 用户的日志操作的内容
	aip varchar(15),       -- 登录的ip
	atime int unsigned,    -- 登录的时间
	primary key(id)
)engine=myisam default charset=utf8;
-- 上一篇
select id from hnsc_news where cname in(
select cname from hnsc_news where id=3)and id>3 limit 1;
-- 下一篇
select id from hnsc_news where cname in(
select cname from hnsc_news where id=5)and id<5  order by id desc limit 1;
select * from hnsc_news;
create table about(
	content text
)engine=myisam default charset=utf8;
select * from about;
drop table about;
truncate table about;
<h1 class="newschptit" style="margin: 0px; padding: 0px; border: 0px; width: 700px; text-align: cent

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