diff --git "a/31 \351\231\210\347\201\265\351\222\260/20230911.md" "b/31 \351\231\210\347\201\265\351\222\260/20230911.md"
new file mode 100644
index 0000000000000000000000000000000000000000..301a48e7cb975e69ecf5af0a0689aa9b93f7839b
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+++ "b/31 \351\231\210\347\201\265\351\222\260/20230911.md"	
@@ -0,0 +1,343 @@
+# 笔记
+
+```mysql
+今天上课好困
+
+1.加强了一对多和多对多的概念
+```
+
+# 作业
+
+```mysql
+/*
+ Navicat Premium Data Transfer
+
+ Source Server         : localhost_3306
+ Source Server Type    : MySQL
+ Source Server Version : 80032 (8.0.32)
+ Source Host           : localhost:3306
+ Source Schema         : movie1
+
+ Target Server Type    : MySQL
+ Target Server Version : 80032 (8.0.32)
+ File Encoding         : 65001
+
+ Date: 12/09/2023 12:30:52
+*/
+
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for awards
+-- ----------------------------
+DROP TABLE IF EXISTS `awards`;
+CREATE TABLE `awards`  (
+  `a_id` int NOT NULL AUTO_INCREMENT,
+  `a_name` varchar(20) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  PRIMARY KEY (`a_id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 6 CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of awards
+-- ----------------------------
+INSERT INTO `awards` VALUES (1, '金鸡奖');
+INSERT INTO `awards` VALUES (2, '金棕榈奖');
+INSERT INTO `awards` VALUES (3, '金熊猫奖');
+INSERT INTO `awards` VALUES (4, '金狮奖');
+INSERT INTO `awards` VALUES (5, '奥斯卡金像奖');
+
+-- ----------------------------
+-- Table structure for comment
+-- ----------------------------
+DROP TABLE IF EXISTS `comment`;
+CREATE TABLE `comment`  (
+  `c_id` int NOT NULL AUTO_INCREMENT,
+  `u_id` int NOT NULL,
+  `use_u_id` int NULL DEFAULT NULL,
+  `use_u_id2` int NULL DEFAULT NULL,
+  `c_type` varchar(5) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  `c_time` date NOT NULL,
+  `c_level` int NULL DEFAULT NULL,
+  `c_content` varchar(100) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  PRIMARY KEY (`c_id`) USING BTREE,
+  INDEX `FK_Relationship_2`(`u_id` ASC) USING BTREE,
+  INDEX `FK_Relationship_7`(`use_u_id` ASC) USING BTREE,
+  INDEX `FK_fb`(`use_u_id2` ASC) USING BTREE,
+  CONSTRAINT `FK_fb` FOREIGN KEY (`use_u_id2`) REFERENCES `user` (`u_id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `FK_Relationship_2` FOREIGN KEY (`u_id`) REFERENCES `user` (`u_id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `FK_Relationship_7` FOREIGN KEY (`use_u_id`) REFERENCES `user` (`u_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
+) ENGINE = InnoDB AUTO_INCREMENT = 20 CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of comment
+-- ----------------------------
+INSERT INTO `comment` VALUES (1, 1, 1, 1, '短评', '2023-02-01', 5, '非常好的电影——爱来自有福的建筑');
+INSERT INTO `comment` VALUES (2, 2, 2, 2, '影评', '2023-08-23', 5, '《流浪地球2》是一部震撼人心的电影，让观众在欣赏科幻壮丽场面的同时，深刻思考人类未来的命运和挑战。\r\n.\r\n更多');
+INSERT INTO `comment` VALUES (3, 3, 3, 3, '长评', '2023-01-22', 4, '三星半。郭帆拍片的恳切，在场景设计和视效的细腻度上，被展现得淋漓尽致，又一次拉高了中国科幻作品的工业水准。雪健老师依旧老辣，刘德华则收获了近年来最有挑战的角色。可惜的是，这部...');
+INSERT INTO `comment` VALUES (4, 4, NULL, NULL, '讨论', '2023-09-09', NULL, '物理学不存在了？？ ');
+INSERT INTO `comment` VALUES (5, 5, 5, 5, '短评', '2023-01-22', 4, '原来人死后还要继续干生前的活儿是真的。');
+INSERT INTO `comment` VALUES (6, 6, 6, 6, '长评', '2023-01-22', 2, ' 网上一水的好评，让我怀疑是不是因为我没有看过原著，所以不能理解里面的各种故事和感情线，三个小时啊，我看的好努力，尽量在找电影的可圈可点，但我能力有限，真的找不到，好累。');
+INSERT INTO `comment` VALUES (7, 7, 7, 7, '短评', '2023-09-11', 5, '又在家看了一遍，什么时候拍第三部，流浪地球，属于中国科幻的浪漫！！');
+INSERT INTO `comment` VALUES (8, 8, 8, 8, '短评', '2023-09-11', 5, '人们赖以进步的AI很有可能反噬人类');
+INSERT INTO `comment` VALUES (9, 9, NULL, NULL, '短评', '2023-07-22', 4, '我以为得多激进呢，结果就这？这也值得破防？');
+INSERT INTO `comment` VALUES (10, 10, NULL, NULL, '长评', '2023-07-21', 5, '爱，死亡和橘皮组织\r\n相信所有人都看过那段关于芭比的“起源故事”的论述，芭比的创始人鲁斯发现自己的女儿芭芭拉没有什么玩具可玩，不像儿子肯一样可以在玩...');
+INSERT INTO `comment` VALUES (11, 11, NULL, NULL, '长评', '2023-07-20', 5, '但不得不说这部电影真的超乎我的预期！\r\n\r\n或许不少人是冲着童年回忆来看的《Barbie》，但这部电影其实无意营造玩具总动员那般的纯真怀旧氛围。这其实是一部较为深刻的、具有高度现代性...');
+INSERT INTO `comment` VALUES (12, 12, NULL, NULL, '讨论', '2023-09-09', NULL, '怪异芭比之家里有一个barbie没被介绍');
+INSERT INTO `comment` VALUES (13, 13, NULL, NULL, '长评', '2023-07-21', 5, '芭比，一部存在主义电影\r\n这篇影评可能有剧透\r\n\r\n灯光渐暗，静待放映，耳边传来飒飒风声，仿佛置身辽阔荒原，正心想《芭比》的葫芦里卖的是什么药？难道是要玩梗西部片？但着实没想...');
+INSERT INTO `comment` VALUES (14, 14, NULL, NULL, '短评', '2023-07-30', 5, '“有一天，当他们对你的惩罚足够多时，他们会给你提供鲑鱼和土豆沙拉，发表演讲，给你一枚奖章。请记住，这不是为了你，而是为了他们。”');
+INSERT INTO `comment` VALUES (15, 15, NULL, NULL, '短评', '2023-07-20', 3, '救命，只有我觉得这故事不需要叙事三小时吗？');
+INSERT INTO `comment` VALUES (16, 16, NULL, NULL, '长评', '2023-07-24', 5, '《奥本海默》观影小指南——历史人物篇\r\n这篇影评可能有剧透\r\n\r\n剧透警告（不是）！\r\n\r\n看着那么多响当当的历史人物一个个出现，但无奈于有限的高中物理知识已经忘得差不多了，另一方面对白...');
+INSERT INTO `comment` VALUES (17, 17, NULL, NULL, '短评', '2023-07-21', 3, '排雷：如果你不喜欢信条、敦刻尔克，那么大概率你也不会喜欢奥本海默');
+INSERT INTO `comment` VALUES (18, 18, NULL, NULL, '讨论', '2023-09-11', NULL, '奥本海默为何拒绝签署西拉德请愿书？');
+INSERT INTO `comment` VALUES (19, 9, NULL, NULL, '短评', '2023-07-21', 4, '在哥廷根看这部电影的感觉实在过于奇妙了。“你不喜欢剑桥，去哥廷根吧。”在场的人都笑了。但之后，就基本上是在一堆错误选项中选择一个错误的绝望之路。');
+
+-- ----------------------------
+-- Table structure for dyfenlei
+-- ----------------------------
+DROP TABLE IF EXISTS `dyfenlei`;
+CREATE TABLE `dyfenlei`  (
+  `t_id` int NOT NULL,
+  `m_id` int NOT NULL,
+  PRIMARY KEY (`t_id`, `m_id`) USING BTREE,
+  INDEX `FK_dyfenlei2`(`m_id` ASC) USING BTREE,
+  CONSTRAINT `FK_dyfenlei` FOREIGN KEY (`t_id`) REFERENCES `movietype` (`t_id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `FK_dyfenlei2` FOREIGN KEY (`m_id`) REFERENCES `movie` (`m_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
+) ENGINE = InnoDB CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of dyfenlei
+-- ----------------------------
+INSERT INTO `dyfenlei` VALUES (3, 1);
+INSERT INTO `dyfenlei` VALUES (4, 2);
+INSERT INTO `dyfenlei` VALUES (2, 3);
+
+-- ----------------------------
+-- Table structure for movie
+-- ----------------------------
+DROP TABLE IF EXISTS `movie`;
+CREATE TABLE `movie`  (
+  `m_id` int NOT NULL AUTO_INCREMENT,
+  `m_name` varchar(15) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  `m_language` varchar(10) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  `m_state` varchar(10) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  `m_date` date NOT NULL,
+  `m_time` int NOT NULL,
+  `m_introductory` varchar(150) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  PRIMARY KEY (`m_id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of movie
+-- ----------------------------
+INSERT INTO `movie` VALUES (1, '流浪地球2', '汉语、俄语、英语等', '中国大陆', '2023-01-22', 173, '《流浪地球2》是由郭帆执导，吴京、李雪健、沙溢、宁理、王智、朱颜曼滋领衔主演、刘德华特别演出的科幻灾难电影。该片于2023年1月22日在中国大陆及北美地区同步上映；2023年2月9日在中国港澳地区上映 。');
+INSERT INTO `movie` VALUES (2, '芭比', '英语', '美国', '2023-07-21', 114, '《芭比》是由格蕾塔·葛韦格执导，玛格特·罗比、瑞恩·高斯林主演的奇幻片，于2023年7月21日在美国、中国内地上映。\r\n该片讲述了在芭比乐园过着完美生活的芭比，突然发现自己身边接连出现不完美事件，意识到存在感危机的她与男友肯试图前往现实世界探寻真相的故事');
+INSERT INTO `movie` VALUES (3, '奥本海默', '英语', '美国、英国', '2023-07-21', 180, '该片改编自Kai Bird和Martin J. Sherwin所著书籍《美国普罗米修斯：奥本海默的胜与悲》，讲述了美国“原子弹之父”罗伯特·奥本海默讲述了奥本海默在“二战期间”领导研制原子弹的过程，以及他在二战结束后遭遇不公正听证会的故事。');
+
+-- ----------------------------
+-- Table structure for moviepeople
+-- ----------------------------
+DROP TABLE IF EXISTS `moviepeople`;
+CREATE TABLE `moviepeople`  (
+  `p_id` int NOT NULL AUTO_INCREMENT,
+  `p_type` varchar(10) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  `p_name` varchar(15) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  PRIMARY KEY (`p_id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 12 CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of moviepeople
+-- ----------------------------
+INSERT INTO `moviepeople` VALUES (1, '主演', '吴京');
+INSERT INTO `moviepeople` VALUES (2, '主演', '刘德华');
+INSERT INTO `moviepeople` VALUES (3, '主演', '李雪建');
+INSERT INTO `moviepeople` VALUES (4, '主演', '沙溢');
+INSERT INTO `moviepeople` VALUES (5, '主演', '宁理');
+INSERT INTO `moviepeople` VALUES (6, '主演', '王智');
+INSERT INTO `moviepeople` VALUES (7, '主演', '朱颜曼滋');
+INSERT INTO `moviepeople` VALUES (8, '导演', '郭帆');
+INSERT INTO `moviepeople` VALUES (9, '编剧', '龚格尔');
+INSERT INTO `moviepeople` VALUES (10, '编剧', '郭帆');
+INSERT INTO `moviepeople` VALUES (11, '制片人', '龚格尔');
+
+-- ----------------------------
+-- Table structure for movietype
+-- ----------------------------
+DROP TABLE IF EXISTS `movietype`;
+CREATE TABLE `movietype`  (
+  `t_id` int NOT NULL AUTO_INCREMENT,
+  `t_name` char(2) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  PRIMARY KEY (`t_id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 9 CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of movietype
+-- ----------------------------
+INSERT INTO `movietype` VALUES (1, '科幻');
+INSERT INTO `movietype` VALUES (2, '历史');
+INSERT INTO `movietype` VALUES (3, '恐怖');
+INSERT INTO `movietype` VALUES (4, '喜剧');
+INSERT INTO `movietype` VALUES (5, '爱情');
+INSERT INTO `movietype` VALUES (6, '战争');
+INSERT INTO `movietype` VALUES (7, '动作');
+INSERT INTO `movietype` VALUES (8, '音乐');
+
+-- ----------------------------
+-- Table structure for produce
+-- ----------------------------
+DROP TABLE IF EXISTS `produce`;
+CREATE TABLE `produce`  (
+  `m_id` int NOT NULL,
+  `p_id` int NOT NULL,
+  PRIMARY KEY (`m_id`, `p_id`) USING BTREE,
+  INDEX `FK_produce2`(`p_id` ASC) USING BTREE,
+  CONSTRAINT `FK_produce` FOREIGN KEY (`m_id`) REFERENCES `movie` (`m_id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `FK_produce2` FOREIGN KEY (`p_id`) REFERENCES `moviepeople` (`p_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
+) ENGINE = InnoDB CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of produce
+-- ----------------------------
+INSERT INTO `produce` VALUES (1, 1);
+INSERT INTO `produce` VALUES (1, 2);
+INSERT INTO `produce` VALUES (1, 3);
+INSERT INTO `produce` VALUES (1, 4);
+INSERT INTO `produce` VALUES (1, 5);
+INSERT INTO `produce` VALUES (1, 6);
+INSERT INTO `produce` VALUES (1, 7);
+INSERT INTO `produce` VALUES (1, 8);
+INSERT INTO `produce` VALUES (1, 9);
+INSERT INTO `produce` VALUES (1, 10);
+INSERT INTO `produce` VALUES (1, 11);
+
+-- ----------------------------
+-- Table structure for relationship_5
+-- ----------------------------
+DROP TABLE IF EXISTS `relationship_5`;
+CREATE TABLE `relationship_5`  (
+  `m_id` int NOT NULL,
+  `c_id` int NOT NULL,
+  PRIMARY KEY (`m_id`, `c_id`) USING BTREE,
+  INDEX `FK_Relationship_8`(`c_id` ASC) USING BTREE,
+  CONSTRAINT `FK_Relationship_5` FOREIGN KEY (`m_id`) REFERENCES `movie` (`m_id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `FK_Relationship_8` FOREIGN KEY (`c_id`) REFERENCES `comment` (`c_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
+) ENGINE = InnoDB CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of relationship_5
+-- ----------------------------
+INSERT INTO `relationship_5` VALUES (1, 1);
+INSERT INTO `relationship_5` VALUES (2, 2);
+INSERT INTO `relationship_5` VALUES (3, 3);
+
+-- ----------------------------
+-- Table structure for relationship_6
+-- ----------------------------
+DROP TABLE IF EXISTS `relationship_6`;
+CREATE TABLE `relationship_6`  (
+  `c_id` int NOT NULL,
+  `m_id` int NOT NULL,
+  PRIMARY KEY (`c_id`, `m_id`) USING BTREE,
+  INDEX `FK_Relationship_9`(`m_id` ASC) USING BTREE,
+  CONSTRAINT `FK_Relationship_6` FOREIGN KEY (`c_id`) REFERENCES `comment` (`c_id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `FK_Relationship_9` FOREIGN KEY (`m_id`) REFERENCES `movie` (`m_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
+) ENGINE = InnoDB CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of relationship_6
+-- ----------------------------
+INSERT INTO `relationship_6` VALUES (1, 1);
+INSERT INTO `relationship_6` VALUES (2, 2);
+INSERT INTO `relationship_6` VALUES (3, 3);
+
+-- ----------------------------
+-- Table structure for tm
+-- ----------------------------
+DROP TABLE IF EXISTS `tm`;
+CREATE TABLE `tm`  (
+  `a_id` int NOT NULL,
+  `t_id` int NOT NULL,
+  PRIMARY KEY (`a_id`, `t_id`) USING BTREE,
+  INDEX `FK_tm2`(`t_id` ASC) USING BTREE,
+  CONSTRAINT `FK_tm` FOREIGN KEY (`a_id`) REFERENCES `awards` (`a_id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `FK_tm2` FOREIGN KEY (`t_id`) REFERENCES `movietype` (`t_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
+) ENGINE = InnoDB CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of tm
+-- ----------------------------
+INSERT INTO `tm` VALUES (1, 1);
+INSERT INTO `tm` VALUES (2, 2);
+INSERT INTO `tm` VALUES (3, 3);
+
+-- ----------------------------
+-- Table structure for user
+-- ----------------------------
+DROP TABLE IF EXISTS `user`;
+CREATE TABLE `user`  (
+  `u_id` int NOT NULL AUTO_INCREMENT,
+  `u_name` varchar(15) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,
+  PRIMARY KEY (`u_id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 19 CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of user
+-- ----------------------------
+INSERT INTO `user` VALUES (1, '你好');
+INSERT INTO `user` VALUES (2, '再见');
+INSERT INTO `user` VALUES (3, '芒果千层永远的神');
+INSERT INTO `user` VALUES (4, '地球大爆炸!!!');
+INSERT INTO `user` VALUES (5, '苦茶入喉');
+INSERT INTO `user` VALUES (6, '每天都要做深蹲');
+INSERT INTO `user` VALUES (7, '冷酷の少爷');
+INSERT INTO `user` VALUES (8, '_ _,启动!');
+INSERT INTO `user` VALUES (9, '星星眨眼');
+INSERT INTO `user` VALUES (10, '眨眼星星');
+INSERT INTO `user` VALUES (11, '求求头发别掉了');
+INSERT INTO `user` VALUES (12, '今天吃什么');
+INSERT INTO `user` VALUES (13, '中午放学吃什么');
+INSERT INTO `user` VALUES (14, '晚上吃什么');
+INSERT INTO `user` VALUES (15, '成年了,不能穿的想小孩子一样了');
+INSERT INTO `user` VALUES (16, '爱门!!!');
+INSERT INTO `user` VALUES (17, '酸菜鱼配饭');
+INSERT INTO `user` VALUES (18, '煮水饺的秘诀');
+
+-- ----------------------------
+-- Table structure for watch
+-- ----------------------------
+DROP TABLE IF EXISTS `watch`;
+CREATE TABLE `watch`  (
+  `u_id` int NOT NULL,
+  `m_id` int NOT NULL,
+  PRIMARY KEY (`u_id`, `m_id`) USING BTREE,
+  INDEX `FK_watch2`(`m_id` ASC) USING BTREE,
+  CONSTRAINT `FK_watch` FOREIGN KEY (`u_id`) REFERENCES `user` (`u_id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `FK_watch2` FOREIGN KEY (`m_id`) REFERENCES `movie` (`m_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
+) ENGINE = InnoDB CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of watch
+-- ----------------------------
+INSERT INTO `watch` VALUES (1, 1);
+INSERT INTO `watch` VALUES (2, 1);
+INSERT INTO `watch` VALUES (3, 1);
+INSERT INTO `watch` VALUES (4, 1);
+INSERT INTO `watch` VALUES (5, 1);
+INSERT INTO `watch` VALUES (6, 1);
+INSERT INTO `watch` VALUES (7, 1);
+INSERT INTO `watch` VALUES (8, 1);
+INSERT INTO `watch` VALUES (9, 2);
+INSERT INTO `watch` VALUES (10, 2);
+INSERT INTO `watch` VALUES (11, 2);
+INSERT INTO `watch` VALUES (13, 2);
+INSERT INTO `watch` VALUES (9, 3);
+INSERT INTO `watch` VALUES (14, 3);
+INSERT INTO `watch` VALUES (15, 3);
+INSERT INTO `watch` VALUES (16, 3);
+INSERT INTO `watch` VALUES (17, 3);
+INSERT INTO `watch` VALUES (18, 3);
+
+SET FOREIGN_KEY_CHECKS = 1;
+
+```
+