MySQL建库建表授权练习

1、创建数据库school，字符集为utf8

CREATE DATABASE school CHARACTER SET utf8;

2、在school数据库中创建Student和Score表

CREATE TABLE Student (Id INT ( 10 ) AUTO_INCREMENT PRIMARY KEY,Stu_id INT(10) NOT     NULL,C_name VARCHAR(20),Grade INT(10))
CREATE TABLE Score (Id INT(10) AUTO_INCREMENT PRIMARY KEY,Name VARCHAR(50),Sex VARCHAR(4),Birth YEAR,Department VARCHAR(20) NOT NULL,Address VARCHAR(50));

3、授权用户tom，密码Mysql@123，能够从任何地方登录并管理数据库school。

create user 'aa'@'%' identified by 'Mysql@123';

4、使用mysql客户端登录服务器，重置root密码

ALTER USER 'root'@'localhost' IDENTIFIED BY 'Mysql@123';