1、创建数据库

#不指定字符创建
create database kodbox character;
#指定utf8字符创建
create database kodbox character set utf8;

2、创建用户

#创建用户kodbox，仅限本机访问，密码123456
create user 'kodbox'@'localhost' identified by '123456';
#创建用户kodbox，仅限192.168.124.3访问，密码123456
create user 'kodbox'@'192.168.124.3' identified by '123456';
#创建用户kodbox，所有IP可以访问，密码123456
create user 'kodbox'@'%' identified by '123456';

3、授权

#将数据库kodbox授权给用户kodbox
grant all privileges on kodbox.* to 'kodbox'@'%'; 
#刷新权限
flush privileges;

4、查看数据库

show databases;

 5、查看用户

 select user,host from mysql.user; 

 6、删除数据库、用户

删除数据库：drop database kodbox;

删除用户：drop user 'kodbox'; 或者 drop user 'kodbox'@'%';