CREATE TABLE tbl_level1
(
id int not null,
...
primary key (level1)
);CREATE TABLE tbl_level2
(
id int not null,
topid int not null, //第一级表的id
....
primary key (level2)
);CREATE TABLE tbl_name
(
levelid int not null, //第二级ID
id int auto_increment not null, //文章ID
//以下为文章其它信息
....
primary key (levelid, id)
);
见笑了, :-)
(
id int not null,
...
primary key (level1)
);CREATE TABLE tbl_level2
(
id int not null,
topid int not null, //第一级表的id
....
primary key (level2)
);CREATE TABLE tbl_name
(
levelid int not null, //第二级ID
id int auto_increment not null, //文章ID
//以下为文章其它信息
....
primary key (levelid, id)
);
见笑了, :-)
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货