diff --git a/2207/MySQL数据库操作综合练习题答案.md b/2207/MySQL数据库操作综合练习题答案.md
index 40c993f..ac6c2ce 100644
--- a/2207/MySQL数据库操作综合练习题答案.md
+++ b/2207/MySQL数据库操作综合练习题答案.md
@@ -261,6 +261,38 @@ GROUP BY d.depid, e.sex;
 ![image-20250315225818026](https://yp.smallkun.cn/markdown/image-20250315225818026.png!compress)
 
 ```sql
+#1
+CREATE DATABASE test_school DEFAULT CHARACTER SET 'UTF8';
+#2
+DROP TABLE department;
+CREATE TABLE department(
+	depNo INT(10) PRIMARY KEY COMMENT '部门号',
+	depName VARCHAR(50) NOT NULL COMMENT '部门名称',
+	depNote VARCHAR(20) COMMENT '部门备注'
+);
+CREATE TABLE teacher(
+	number INT PRIMARY KEY COMMENT '教工号',
+	`name` VARCHAR(30) NOT NULL COMMENT '姓名',
+	sex VARCHAR(4) COMMENT '性别',
+	birth DATE COMMENT '出生日期',
+	depNo INT COMMENT '部门号',
+	salary FLOAT COMMENT '工资',
+	address VARCHAR(100) COMMENT '家庭住址'
+);
+INSERT INTO department()
+VALUES
+(601, '软件技术系', '软件技术等专业'),
+(602, '网络技术系', '多媒体技术等专业'),
+(603, '艺术设计系', '广告艺术设计等专业'),
+(604, '管理工程系', '连锁经营管理等专业');
+
+INSERT INTO teacher()
+VALUES
+(2001, 'Tom', '女', '1970-01-10', 602, 4500, '四川省绵阳市'),
+(2002, 'Lucy', '男', '1983-12-18', 601, 2500, '北京市昌平区'),
+(2003, 'Mike', '男', '1990-06-01', 604, 1500, '重庆市渝中区'),
+(2004, 'James', '女', '1980-10-20', 602, 3500, '四川省成都市'),
+(2005, 'Jack', '男', '1975-05-30', 603, 1200, '重庆市南岸区');
 ```
 
 ![image-20250315225829272](https://yp.smallkun.cn/markdown/image-20250315225829272.png!compress)