WindowsServer2019安装MySQL5.7.25的方法
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
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MySQLmysql> 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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