📄 mysqldb.sql
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drop database if exists newsboard;
create database newsboard;
use newsboard;
# 建用户表
create table app_user(
username varchar(20),
password varchar(255),
primary key(username));
insert into app_user values('tomcat' , '123');
insert into app_user values('yeeku' , '123');
# 建新闻分类表
create table category(
id bigint(20),
name varchar(50),
primary key(id));
# 插入两条分类数据
insert into category values(1,'社会新闻');
insert into category values(2,'娱乐新闻');
# 建新闻表
create table news(
id bigint(20),
category_id bigint(20),
last_modify_date datetime,
post_date datetime,
username varchar(20),
content text,
title varchar(50),
primary key(id),
foreign key(category_id) references category(id),
foreign key(username) references app_user(username));
# 建回复表
create table news_review(
id bigint(20),
content text,
last_modify_date datetime,
news_id bigint(20),
post_date datetime,
username varchar(20),
primary key(id),
foreign key(news_id) references news(id),
foreign key(username) references app_user(username));
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