将解压文件放置C盘
配置环境变量 Patch:C:\mysql-5.7.25-winx64\bin;
安装mysql
切换到bin目录 cd C:*\bin
1.mysqld --initialize --console 打印root用户的初始密码 (失败删除data文件重新执行)
root@localhost:后面的“rI5rvf5x5G,E”就是初始密码(不含首位空格)。在没有更改密码前,需要记住这个密码,后续登录需要用到
2.安装服务bin目录下执行
mysqld --install mysql
3.启动服务(进入控制台直接运行)
net start mysql启动
4.停止服务
net stop mysql
5.更改密码(bin目录下运行):先要启动服务
mysql -u root -p 输入root密码 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '新密码';
--root远程权限
grant all PRIVILEGES on test_db.* to 'root'@'%' identified by '设置的密码';
6.可以用 命令查看一下默认安装的数据库:
show databases; use mysql; 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 'username'@'%' IDENTIFIED WITH mysql_native_password BY 'password';
示例
CREATE USER 'dog'@'localhost' IDENTIFIED BY '123456'; CREATE USER 'pig'@'192.168.1.101_' IDENDIFIED BY '123456'; CREATE USER 'pig'@'%' IDENTIFIED BY '123456';
(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>
另外,如果需要新增账户,或者本机以外的其他人访问MySQL则还需要设置内置账户的host,具体可以参考:MySQL创建用户与授权
登录MySQL
mysql> 键入命令mysql -uroot -p, 回车后提示你输入密码,输入12345,然后回车即可
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