214 lines
9.4 KiB
SQL
214 lines
9.4 KiB
SQL
-- 学生成绩管理系统数据库初始化脚本
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-- 创建数据库
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CREATE DATABASE IF NOT EXISTS score_management DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
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USE score_management;
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-- 用户表（学生、教师、管理员）
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CREATE TABLE IF NOT EXISTS users (
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id VARCHAR(20) PRIMARY KEY COMMENT '用户ID（学号/工号）',
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name VARCHAR(50) NOT NULL COMMENT '姓名',
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password VARCHAR(100) NOT NULL COMMENT '密码（bcrypt加密）',
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role ENUM('student', 'teacher', 'admin') NOT NULL COMMENT '角色',
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class VARCHAR(20) DEFAULT NULL COMMENT '班级（学生和教师需要，管理员为NULL）',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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INDEX idx_role (role),
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INDEX idx_class (class)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户表';
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-- students 表：学生详细信息（与 users 表 id 关联）
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CREATE TABLE IF NOT EXISTS students (
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id VARCHAR(20) PRIMARY KEY COMMENT '学生ID（与users表id一致）',
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name VARCHAR(50) NOT NULL COMMENT '姓名',
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class VARCHAR(20) COMMENT '班级',
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FOREIGN KEY (id) REFERENCES users(id) ON DELETE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='学生详细信息表';
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-- scores 表：成绩记录
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CREATE TABLE IF NOT EXISTS scores (
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id INT AUTO_INCREMENT PRIMARY KEY COMMENT '成绩记录ID',
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student_id VARCHAR(20) NOT NULL COMMENT '学生ID',
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course VARCHAR(100) NOT NULL COMMENT '课程名称',
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score DECIMAL(5,2) NOT NULL CHECK (score >= 0 AND score <= 100) COMMENT '成绩',
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teacher_id VARCHAR(20) NOT NULL COMMENT '教师ID',
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class VARCHAR(20) NOT NULL COMMENT '班级',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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FOREIGN KEY (student_id) REFERENCES users(id) ON DELETE CASCADE,
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FOREIGN KEY (teacher_id) REFERENCES users(id) ON DELETE CASCADE,
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INDEX idx_student_id (student_id),
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INDEX idx_teacher_id (teacher_id),
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INDEX idx_class (class)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='成绩记录表';
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-- 班级表
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CREATE TABLE IF NOT EXISTS classes (
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id INT PRIMARY KEY AUTO_INCREMENT COMMENT '班级ID',
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class_name VARCHAR(50) NOT NULL COMMENT '班级名称',
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grade VARCHAR(20) COMMENT '年级',
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major VARCHAR(100) COMMENT '专业',
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teacher_id INT COMMENT '班主任ID',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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INDEX idx_class_name (class_name),
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INDEX idx_teacher_id (teacher_id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='班级表';
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-- 课程表
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CREATE TABLE IF NOT EXISTS courses (
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id INT PRIMARY KEY AUTO_INCREMENT COMMENT '课程ID',
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course_code VARCHAR(20) UNIQUE NOT NULL COMMENT '课程代码',
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course_name VARCHAR(100) NOT NULL COMMENT '课程名称',
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credit DECIMAL(3,1) NOT NULL DEFAULT 2.0 COMMENT '学分',
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teacher_id INT NOT NULL COMMENT '授课教师ID',
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class_id INT NOT NULL COMMENT '授课班级ID',
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semester VARCHAR(20) COMMENT '学期',
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academic_year VARCHAR(20) COMMENT '学年',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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INDEX idx_course_code (course_code),
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INDEX idx_teacher_id (teacher_id),
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INDEX idx_class_id (class_id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='课程表';
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-- 成绩表
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CREATE TABLE IF NOT EXISTS grades (
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id INT PRIMARY KEY AUTO_INCREMENT COMMENT '成绩ID',
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student_id INT NOT NULL COMMENT '学生ID',
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course_id INT NOT NULL COMMENT '课程ID',
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usual_score DECIMAL(5,2) COMMENT '平时成绩',
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midterm_score DECIMAL(5,2) COMMENT '期中成绩',
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final_score DECIMAL(5,2) COMMENT '期末成绩',
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total_score DECIMAL(5,2) COMMENT '总评成绩',
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grade_point DECIMAL(3,2) COMMENT '绩点',
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grade_level VARCHAR(10) COMMENT '成绩等级（A/B/C/D/F）',
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teacher_id INT NOT NULL COMMENT '录入教师ID',
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remark TEXT COMMENT '备注',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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UNIQUE KEY uk_student_course (student_id, course_id),
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INDEX idx_student_id (student_id),
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INDEX idx_course_id (course_id),
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INDEX idx_teacher_id (teacher_id),
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INDEX idx_total_score (total_score)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='成绩表';
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-- 操作日志表
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CREATE TABLE IF NOT EXISTS operation_logs (
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id INT PRIMARY KEY AUTO_INCREMENT COMMENT '日志ID',
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user_id INT NOT NULL COMMENT '操作用户ID',
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operation_type VARCHAR(50) NOT NULL COMMENT '操作类型',
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operation_target VARCHAR(100) COMMENT '操作目标',
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operation_details TEXT COMMENT '操作详情',
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ip_address VARCHAR(45) COMMENT 'IP地址',
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user_agent TEXT COMMENT '用户代理',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '操作时间',
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INDEX idx_user_id (user_id),
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INDEX idx_operation_type (operation_type),
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INDEX idx_created_at (created_at)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='操作日志表';
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-- 插入初始数据
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-- 插入管理员用户（密码：admin123）
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INSERT INTO users (username, password, name, role, email, phone) VALUES
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('admin', '$2b$10$N9qo8uLOickgx2ZMRZoMy.MrqK.3.6Z1zXjJX.3Q7JzQ7JzQ7JzQ7', '系统管理员', 'admin', 'admin@school.edu', '13800138000');
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-- 插入示例班级
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INSERT INTO classes (class_name, grade, major) VALUES
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('计算机科学与技术2023级1班', '2023', '计算机科学与技术'),
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('软件工程2023级1班', '2023', '软件工程'),
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('人工智能2023级1班', '2023', '人工智能');
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-- 插入示例教师（密码：teacher123）
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INSERT INTO users (username, password, name, role, class_id, email, phone) VALUES
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('t1001', '$2b$10$N9qo8uLOickgx2ZMRZoMy.MrqK.3.6Z1zXjJX.3Q7JzQ7JzQ7JzQ7', '张老师', 'teacher', 1, 'zhang@school.edu', '13800138001'),
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('t1002', '$2b$10$N9qo8uLOickgx2ZMRZoMy.MrqK.3.6Z1zXjJX.3Q7JzQ7JzQ7JzQ7', '李老师', 'teacher', 2, 'li@school.edu', '13800138002');
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-- 插入示例学生（密码：student123）
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INSERT INTO users (username, password, name, role, class_id, email, phone) VALUES
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('s2023001', '$2b$10$N9qo8uLOickgx2ZMRZoMy.MrqK.3.6Z1zXjJX.3Q7JzQ7JzQ7JzQ7', '张三', 'student', 1, 'zhangsan@school.edu', '13800138111'),
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('s2023002', '$2b$10$N9qo8uLOickgx2ZMRZoMy.MrqK.3.6Z1zXjJX.3Q7JzQ7JzQ7JzQ7', '李四', 'student', 1, 'lisi@school.edu', '13800138112'),
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('s2023003', '$2b$10$N9qo8uLOickgx2ZMRZoMy.MrqK.3.6Z1zXjJX.3Q7JzQ7JzQ7JzQ7', '王五', 'student', 2, 'wangwu@school.edu', '13800138113');
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-- 插入示例课程
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INSERT INTO courses (course_code, course_name, credit, teacher_id, class_id, semester, academic_year) VALUES
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('CS101', '计算机基础', 3.0, 2, 1, '2023-2024-1', '2023-2024'),
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('CS201', '数据结构', 4.0, 2, 1, '2023-2024-1', '2023-2024'),
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('SE101', '软件工程导论', 3.0, 3, 2, '2023-2024-1', '2023-2024'),
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('AI101', '人工智能基础', 3.5, 3, 3, '2023-2024-1', '2023-2024');
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-- 插入示例成绩
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INSERT INTO grades (student_id, course_id, usual_score, midterm_score, final_score, total_score, grade_point, grade_level, teacher_id) VALUES
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(3, 1, 85.00, 78.00, 82.00, 81.50, 3.2, 'B', 2),
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(3, 2, 90.00, 85.00, 88.00, 87.50, 3.7, 'A', 2),
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(4, 1, 78.00, 82.00, 80.00, 80.50, 3.0, 'B', 2),
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(5, 3, 88.00, 85.00, 90.00, 88.50, 3.8, 'A', 3);
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-- 更新班级表的班主任信息
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UPDATE classes SET teacher_id = 2 WHERE id = 1;
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UPDATE classes SET teacher_id = 3 WHERE id = 2;
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-- 创建视图：学生成绩详情视图
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CREATE OR REPLACE VIEW student_grade_details AS
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SELECT
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g.id,
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g.student_id,
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u1.name AS student_name,
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u1.username AS student_no,
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g.course_id,
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c.course_code,
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c.course_name,
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c.credit,
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g.usual_score,
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g.midterm_score,
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g.final_score,
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g.total_score,
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g.grade_point,
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g.grade_level,
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g.teacher_id,
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u2.name AS teacher_name,
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g.remark,
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g.created_at,
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g.updated_at
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FROM grades g
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JOIN users u1 ON g.student_id = u1.id
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JOIN courses c ON g.course_id = c.id
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JOIN users u2 ON g.teacher_id = u2.id;
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-- 创建视图：班级成绩统计视图
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CREATE OR REPLACE VIEW class_grade_statistics AS
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SELECT
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cl.id AS class_id,
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cl.class_name,
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c.id AS course_id,
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c.course_code,
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c.course_name,
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COUNT(g.id) AS student_count,
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AVG(g.total_score) AS avg_score,
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MAX(g.total_score) AS max_score,
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MIN(g.total_score) AS min_score,
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SUM(CASE WHEN g.grade_level = 'A' THEN 1 ELSE 0 END) AS a_count,
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SUM(CASE WHEN g.grade_level = 'B' THEN 1 ELSE 0 END) AS b_count,
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SUM(CASE WHEN g.grade_level = 'C' THEN 1 ELSE 0 END) AS c_count,
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SUM(CASE WHEN g.grade_level = 'D' THEN 1 ELSE 0 END) AS d_count,
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SUM(CASE WHEN g.grade_level = 'F' THEN 1 ELSE 0 END) AS f_count
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FROM classes cl
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JOIN courses c ON cl.id = c.class_id
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LEFT JOIN grades g ON c.id = g.course_id
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GROUP BY cl.id, c.id;
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-- 显示表结构信息
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SHOW TABLES;
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-- 显示各表记录数
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SELECT 'users' AS table_name, COUNT(*) AS record_count FROM users
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UNION ALL
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SELECT 'classes', COUNT(*) FROM classes
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UNION ALL
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SELECT 'courses', COUNT(*) FROM courses
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UNION ALL
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SELECT 'grades', COUNT(*) FROM grades
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UNION ALL
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SELECT 'operation_logs', COUNT(*) FROM operation_logs;
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-- 显示视图
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SHOW FULL TABLES WHERE TABLE_TYPE = 'VIEW'; |