diff --git a/v2.sql b/v2.sql
new file mode 100644
index 0000000..85033c5
--- /dev/null
+++ b/v2.sql
@@ -0,0 +1,57 @@
+create database stuAdminSystem;
+
+use stuAdminSystem;
+
+create table student(
+	id nvarchar(10) primary key,
+	name nvarchar(15) not null,
+	sex nvarchar(5) not null,
+	stuClass nvarchar(20) not null,
+	status nvarchar(10) not null
+);
+
+create table course(
+	id nvarchar(10) primary key,
+	name nvarchar(50) not null
+);
+
+create table grade(
+	stuId nvarchar(10),
+	courseId nvarchar(10),
+	graded decimal(5,2) not null,
+	primary key(stuId,courseId)
+);
+
+
+
+insert into student 
+values
+('1','张三','男','软件12004','在读'),
+('2','李四','女','软件12004','在读'),
+('3','王五','女','计科12003','在读'),
+('4','赵六','女','物联网12001','在读'),
+('5','李恩情','男','计科12003','在读'),
+('6','魏抵税','男','软件12004','在读'),
+('7','张三','女','计科12003','在读'),
+('8','李六','男','软件12004','在读');
+
+insert into course
+values
+('C001','高数'),
+('C002','大学英语'),
+('C003','线性代数'),
+('C004','大学物理'),
+('C005','C语言'),
+('C006','体育');
+
+insert into grade
+values
+('1','C001',95),
+('1','C002',90),
+('1','C005',97),
+('2','C006',75),
+('2','C001',90),
+('3','C005',76),
+('4','C003',75),
+('5','C001',78),
+('8','C001',98);
\ No newline at end of file