精简 mysql8,以及mysql8用户授权

下载mysql8,当然你可以下载mysql8最新版

下载地址：https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.15-winx64.zip

已精简mysql-8.0.15-winx64 版本

下载地址：https://download.youkuaiyun.com/download/deeplyloving/11141721

解压到某目录：比如 d:/mysql-8.0.15-winx64

精简步骤

   

1.    bin 目录下保留  mysqld.exe ssleay32.dll  mysql.exe(非必须)   

2.    share 目录下保留 english\errmsg.sys

 

目录结构为

d:/mysql-8.0.15-winx64

    bin 

        mysqld.exe

        ssleay32.dll

        mysql.exe

    share 

        english

            errmsg.sys

 

这样精简下来 已经很小了。如用zip压缩一下 在 13-14MB左右

初始化mysql

    d:/mysql-8.0.15-winx64 下新建 data目录

    进入命令行,切换到mysql-8.0.15/bin目录  执行 

    mysqld --initialize --console

    返回：

2019-04-24T05:19:41.781428Z 0 [System] [MY-013169] [Server] D:\dev\dbs\mysql-8.0.15-winx64\bin\mysqld.exe (mysqld 8.0.15) initializing of server in progress as process 7772
2019-04-24T05:19:45.452130Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: g->E.DXWa6oI
2019-04-24T05:19:46.555585Z 0 [System] [MY-013170] [Server] D:\dev\dbs\mysql-8.0.15-winx64\bin\mysqld.exe (mysqld 8.0.15) initializing of server has completed

 红色处代表 root@localhost的初始密码 授权时会用到   

 

授权：

mysql -uroot -p

登陆mysql

修改默认密码

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '111111';

创建 root@% 可远程访问用户

CREATE USER 'root'@'%' IDENTIFIED BY '111111'

将加密方式由caching_sha2_password改为mysql_native_password(如不改某些客户端加密默认为mysql_native_password 将无法登陆)

ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '111111';

授权

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'WITH GRANT OPTION;

刷新权限

FLUSH PRIVILEGES;