show tables;
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.01 sec) mysql>
看到默认初始化了mysql数据库,其中user表里面存储MySQL用户信息。我们可以看一下默认MySQL用户:
select user,host,authentication_string from mysql.user;
mysql> select user,host,authentication_string from mysql.user; +------------------+-----------+-------------------------------------------+ | user | host | authentication_string | +------------------+-----------+-------------------------------------------+ | mysql.infoschema | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE | | mysql.session | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE | | mysql.sys | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE | | root | localhost | *27C237A977F4F44D3F551F1A673BE14DFD232961 | +------------------+-----------+-------------------------------------------+ 4 rows in set (0.00 sec) mysql>
管理员root的host是localhost,代表仅限localhost登录访问。如果要允许开放其他ip登录,则需要添加新的host。如果要允许所有ip访问,可以直接修改成“%”
创建用户:
CREATE USER 'xxh'@'%' IDENTIFIED WITH mysql_native_password BY 'xxh123!@#';
#(需要注意:mysql8.0加密方式修改了)
#检查用户
select user, host, plugin, authentication_string from user\G;
授权远程数据库
#授权所有权限 GRANT ALL PRIVILEGES ON *.* TO 'xxh'@'%'; #授权基本的查询修改权限,按需求设置 GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP,ALTER ON *.* TO 'xxh'@'%';
查看用户权限
show grants for 'xxh'@'%';
示例:
mysql> use mysql; Database changed mysql> CREATE USER 'xxh'@'%' IDENTIFIED WITH mysql_native_password BY 'xxh123!@#'; #创建用户(注意:mysql8.0加密方式修改了) Query OK, 0 rows affected (0.07 sec) mysql>
查看密码加密方式:
mysql> select user, host, plugin, authentication_string from user; +------------------+-----------+-----------------------+-------------------------------------------+ | user | host | plugin | authentication_string | +------------------+-----------+-----------------------+-------------------------------------------+ | xxh | % | mysql_native_password | *70FD6FB4F675E08FF785A754755B5EBA6DA62851 | | mysql.infoschema | localhost | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE | | mysql.session | localhost | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE | | mysql.sys | localhost | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE | | root | localhost | mysql_native_password | *27C237A977F4F44D3F551F1A673BE14DFD232961 | +------------------+-----------+-----------------------+-------------------------------------------+ 5 rows in set (0.00 sec) mysql>
总结
以上所述是小编给大家介绍的mysql 8.0.11安装教程图文解说,希望对大家有所帮助,如果大家有任何疑问欢迎给我留言,小编会及时回复大家的!
更多相关Mysql内容来自木庄网络博客
标签:Mysql
相关阅读 >>
更多相关阅读请进入《mysql》频道 >>
数据库系统概念 第6版
本书主要讲述了数据模型、基于对象的数据库和XML、数据存储和查询、事务管理、体系结构等方面的内容。