/*数据导入：

Navicat Premium Data Transfer

Source Server : localhost

Source Server Type : MySQL

Source Server Version :50624Source Host : localhost

Source Database : sqlexam

Target Server Type : MySQL

Target Server Version :50624File Encoding : utf-8Date:10/21/2016 06:46:46AM*/SET NAMES utf8;

SET FOREIGN_KEY_CHECKS=0;-- ----------------------------

-- Table structure for `class`-- ----------------------------DROP TABLE IF EXISTS `class`;

CREATE TABLE `class` (

`cid` int(11) NOT NULL AUTO_INCREMENT,

`caption` varchar(32) NOT NULL,

PRIMARY KEY (`cid`)

) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;-- ----------------------------

-- Records of `class`-- ----------------------------BEGIN;

INSERT INTO `class` VALUES ('1', '三年二班'), ('2', '三年三班'), ('3', '一年二班'), ('4', '二年九班');

COMMIT;-- ----------------------------

-- Table structure for`course`-- ----------------------------DROP TABLE IF EXISTS `course`;

CREATE TABLE `course` (

`cid` int(11) NOT NULL AUTO_INCREMENT,

`cname` varchar(32) NOT NULL,

`teacher_id` int(11) NOT NULL,

PRIMARY KEY (`cid`),

KEY `fk_course_teacher` (`teacher_id`),

CONSTRAINT `fk_course_teacher` FOREIGN KEY (`teacher_id`) REFER