FJ4hhd63

1# CREATE DATABASE IF NOT EXISTS `class` DEFAULT CHARSET utf8 COLLATE utf8_general_ci;
2# USE `class`;
3CREATE TABLE student(
4  `id` INT UNSIGNED AUTO_INCREMENT key,
5  `username` VARCHAR(20) NOT NULL UNIQUE,
6  `email` VARCHAR(50) NOT NULL
7);
8INSERT INTO student(username,email) VALUE ("bobby","email@qq.com");