From af25c7b8c3e0b31980a9d585f3d805da64d86cbc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9E=97=E9=91=AB?=
 <11785109+linxin221@user.noreply.gitee.com>
Date: Tue, 12 Sep 2023 03:59:36 +0000
Subject: [PATCH] =?UTF-8?q?02=E6=9E=97=E9=91=AB?=
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Signed-off-by: 林鑫 <11785109+linxin221@user.noreply.gitee.com>
---
 .../20230911\347\224\265\345\275\261.md"      | 129 ++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 "02 \346\236\227\351\221\253/20230911\347\224\265\345\275\261.md"

diff --git "a/02 \346\236\227\351\221\253/20230911\347\224\265\345\275\261.md" "b/02 \346\236\227\351\221\253/20230911\347\224\265\345\275\261.md"
new file mode 100644
index 0000000..7bf6191
--- /dev/null
+++ "b/02 \346\236\227\351\221\253/20230911\347\224\265\345\275\261.md"	
@@ -0,0 +1,129 @@
+今天学习了图书馆数据库系统具体的框架做法，进一步学习到了数据库模型构造的思维。
+
+
+
+作业
+
+```sql
+/*==============================================================*/
+/* DBMS name:      MySQL 5.0                                    */
+/* Created on:     2023/9/12 10:51:22                           */
+/*==============================================================*/
+CREATE DATABASE movie charset utf8;
+use movie;
+
+
+drop table if exists area;
+
+drop table if exists comments;
+
+drop table if exists movie;
+
+drop table if exists type;
+
+drop table if exists user;
+
+/*==============================================================*/
+/* Table: area                                                  */
+/*==============================================================*/
+create table area
+(
+   area_id              int not null auto_increment,
+   area_name            char(5),
+   primary key (area_id)
+);
+
+INSERT into area VALUES
+(1,'中国'),
+(2,'英国'),
+(3,'俄罗斯'),
+(4,'美国');
+
+/*==============================================================*/
+/* Table: comments                                              */
+/*==============================================================*/
+create table comments
+(
+   movie_id             int,
+   user_id              int,
+   movie_comments       char(50)
+);
+
+INSERT into comments VALUES
+(1,2,'哈哈哈哈哈哈哈很好看'),
+(1,3,'这真的是一部温柔电影，感谢这被善待的前半生，它存在过。连带着你没有来过的20年');
+INSERT into comments VALUES
+(3,1,'类型片八股文，情感铺陈欠缺，人物动机匮乏，表演稍显生涩,药神式转折,故事线只开头不挽结，细节完成度低');
+
+/*==============================================================*/
+/* Table: movie                                                 */
+/*==============================================================*/
+create table movie
+(
+   movie_id             int not null auto_increment,
+   type_id              int,
+   area_id              int,
+   movie_name           char(10),
+   director             char(5),
+   actor                char(50),
+   language             char(5),
+   begintime              date,
+   movie_time           char(5),
+   score                decimal(2,1),
+   number               int,
+   primary key (movie_id)
+);
+
+INSERT into movie VALUES
+(1,5,4,'过往人生','席琳·宋',' 格蕾塔·李 / 刘台午 / 约翰·马加罗 / 文胜雅 / 尹智慧 /','英语/韩语','2023-01-21','106分钟',7.7,15161);
+INSERT into movie VALUES
+(2,1,4,'巨齿鲨2','本·维特利',' 杰森·斯坦森 / 吴京 / 蔡书雅 / 克利夫·柯蒂斯 /','英语','2023-08-04','119分钟',5.2,57134),
+(3,1,1,'八角笼中','王宝强',' 王宝强 / 陈永胜 / 史彭元 / 王迅 / 张祎曈 /','中文','2023-07-06','117分钟',7.4,118071);
+
+/*==============================================================*/
+/* Table: type                                                  */
+/*==============================================================*/
+create table type
+(
+   type_id              int not null auto_increment,
+   type_name            char(5),
+   primary key (type_id)
+);
+INSERT into type VALUES
+(1,'动作'),
+(2,'悬疑'),
+(3,'恐怖'),
+(4,'喜剧'),
+(5,'爱情');
+
+
+/*==============================================================*/
+/* Table: user                                                  */
+/*==============================================================*/
+create table user
+(
+   user_id              int not null auto_increment,
+   user_name            char(10),
+   user_ip              char(5),
+   primary key (user_id)
+);
+INSERT into user VALUES
+(1,'哈哈哈哈施层层','福建'),
+(2,'哈哈哈哈溜江江','贵州'),
+(3,'哈哈哈哈洪洋洋','福建');
+
+alter table comments add constraint FK_Relationship_3 foreign key (movie_id)
+      references movie (movie_id) on delete restrict on update restrict;
+
+alter table comments add constraint FK_Relationship_4 foreign key (user_id)
+      references user (user_id) on delete restrict on update restrict;
+
+alter table movie add constraint FK_Relationship_1 foreign key (type_id)
+      references type (type_id) on delete restrict on update restrict;
+
+alter table movie add constraint FK_Relationship_2 foreign key (area_id)
+      references area (area_id) on delete restrict on update restrict;
+			
+
+
+```
-- 
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