text: DROP TABLE IF EXISTS user;
  
  CREATE TABLE user
  (
  	id BIGINT(20) NOT NULL COMMENT '主键ID',
  	name VARCHAR(30) NULL DEFAULT NULL COMMENT '姓名',
  	age INT(11) NULL DEFAULT NULL COMMENT '年龄',
  	email VARCHAR(50) NULL DEFAULT NULL COMMENT '邮箱',
  	PRIMARY KEY (id)
  );
  
  DELETE FROM user;
  
  INSERT INTO user (id, name, age, email) VALUES
  (1, 'Jone', 18, 'test1@baomidou.com'),
  (2, 'Jack', 20, 'test2@baomidou.com'),
  (3, 'Tom', 28, 'test3@baomidou.com'),
  (4, 'Sandy', 21, 'test4@baomidou.com'),
  (5, 'Billie', 24, 'test5@baomidou.com');
  