数据库的创建

CREATE DATABASE IF NOT EXISTS westos;
DROP DATABASE IF EXISTS westos;
-- TAB键的上面,如果你的表名或者字段名是一个特殊字符，就需要```student``student``student``school``school``student`
USE `SCHOOL`;

SELECT `user` FROM student;
-- --查看所有的数据库
SHOW DATABASES;
DROP DATABASE IF EXISTS school