From 201aa9bc780e916a7b886ad240c6036a840b4b15 Mon Sep 17 00:00:00 2001
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 <11785166+hzyai77@user.noreply.gitee.com>
Date: Wed, 6 Sep 2023 16:07:02 +0000
Subject: [PATCH] =?UTF-8?q?=E9=9F=A9=E9=9C=87=E6=B4=8B?=
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Signed-off-by: 韩震洋 <11785166+hzyai77@user.noreply.gitee.com>
---
 .../20220907mysql\345\273\272\350\241\250.md" | 110 ++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 "40 \351\237\251\351\234\207\346\264\213/20220907mysql\345\273\272\350\241\250.md"

diff --git "a/40 \351\237\251\351\234\207\346\264\213/20220907mysql\345\273\272\350\241\250.md" "b/40 \351\237\251\351\234\207\346\264\213/20220907mysql\345\273\272\350\241\250.md"
new file mode 100644
index 0000000..9ea9aec
--- /dev/null
+++ "b/40 \351\237\251\351\234\207\346\264\213/20220907mysql\345\273\272\350\241\250.md"	
@@ -0,0 +1,110 @@
+```mysql
+create database school charset utf8;
+
+use school;
+
+-- 院系表
+create table department(
+	d_id int primary key,
+	d_name varchar(10),
+	d_address varchar(10)
+);
+insert into department values
+(123,'软件工程学院','望云楼'),
+(456,'信息工程学院','辛耕楼'),
+(789,'建筑工程学院','万源楼');
+
+-- 专业表
+create table speciality(
+	s_id int primary key,
+	s_name varchar(10),
+	d_id int,
+	foreign key (d_id) references department(d_id)
+);
+insert into speciality values
+(11,'软件技术与开发',123),
+(22,'信息技术',456),
+(33,'建筑设计',789);
+
+-- 教室表
+create table classroom(
+r_id int PRIMARY KEY,
+r_name varchar(10)
+);
+insert into classroom values
+(1,'实训一'),
+(2,'实训二'),
+(3,'实训三');
+
+-- 班级表
+create table class(
+	c_id int primary key,
+	c_name varchar(10),
+	s_id int,
+	foreign key (s_id) references speciality(s_id)
+);
+insert into class values
+(1,'软件技术1班',11),
+(2,'软件技术2班',11),
+(3,'软件技术3班',11);
+
+-- 课程表
+CREATE TABLE course(
+	couseId int PRIMARY key,
+	courseName varchar(10),
+	c_id int,
+	r_id int,
+	foreign key (c_id) references class(c_id),
+	foreign key (r_id) references classroom(r_id)
+);
+insert into course VALUES
+(1,'java',1,2),
+(2,'html',2,3),
+(3,'mysql',3,1);
+
+-- 教师表
+create table teacher(
+	t_id int primary key,
+	t_name varchar(10),
+	couseId int,
+	foreign key (couseId) references course(couseId)
+);
+insert into teacher values
+(1,'张三',1),
+(2,'张四',2),
+(3,'张五',3);
+
+-- 选修表
+create table `select` (
+	selectId int primary key,
+	couseId int,
+	time varchar(20),
+	t_id int,
+	r_id int,
+	foreign key (couseId) references course(couseId),
+	foreign key (t_id) references teacher(t_id),
+	foreign key (r_id) references classroom(r_id)
+);
+insert into `select` values
+(1,1,'周一上午',2,3),
+(2,2,'周二下午',1,2),
+(3,3,'周三上午',3,1);
+
+-- 学生表
+create table student (
+	id int primary key,
+	name varchar(10),
+	sex varchar(5),
+	age int,
+	address varchar(20),
+	c_id int,
+	selectId int,
+	foreign key (c_id) references class(c_id),
+	foreign key (selectId) references `select`(selectId)
+);
+insert into student values
+(11111,'小明','男',18,'团结里1',1,1),
+(22222,'小花','女',118,'团结里2',2,2),
+(33333,'小王','男',1118,'团结里3',3,3);
+```
+
-- 
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