SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
– Table structure for clazz
DROP TABLE IF EXISTS clazz;
CREATE TABLE clazz (clazz_id int(11) NOT NULL,clazz_name varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,teacher_id int(11) NULL DEFAULT NULL,
PRIMARY KEY (clazz_id) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
– Records of clazz
INSERT INTO clazz VALUES (1, ‘一班’, 1);
INSERT INTO clazz VALUES (2, ‘二班’, 1);
– Table structure for department
DROP TABLE IF EXISTS department;
CREATE TABLE department (department_id int(11) NOT NULL AUTO_INCREMENT,department_name varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
PRIMARY KEY (department_id) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
– Records of department
INSERT INTO department VALUES (1, ‘软件工程’);
INSERT INTO department VALUES (2, ‘能源工程’);
INSERT INTO department VALUES (3, ‘机械工程’);
– Table structure for difficulty
DROP TABLE IF EXISTS difficulty;
CREATE TABLE difficulty (id int(11) NOT NULL AUTO_INCREMENT,diffcultly_level varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
PRIMARY KEY (id) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;