MYSQL8 常用操作

• 开启root账号远程访问

　　方法1

mysql> CREATE USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY ''; //修改密码认证方式为mysql_native_password
mysql> GRANT ALL ON *.* TO 'root'@'%';

　　方法2

mysql> CREATE USER 'root'@'%' IDENTIFIED BY ''; //默认的密码认证插件 caching_sha2_password
mysql> GRANT ALL ON *.* TO 'root'@'%';
mysql> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '';

• 创建数据库

mysql> CREATE database IF NOT EXISTS meeting;

• 创建账号

mysql> CREATE USER meeting IDENTIFIED BY 'pass123';

• 授权

mysql> GRANT EXECUTE,INSERT,UPDATE,DELETE,DROP,CREATE,DROP,ALTER ON meeting.* TO 'meeting'@'%' WITH GRANT OPTION;
mysql> FLUSH PRIVILEGES;

• 修改密码

mysql> ALTER USER 'meeting'@'%' identified with mysql_native_password by 'pass456';

• 特别注意

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '';
ERROR 1396 (HY000): Operation ALTER USER failed for 'root'@'localhost'

如遇上以上问题请使用update语句先清空authentication_string字段，然后再修改密码即可

mysql> UPDATE user SET authentication_string='' WHERE USER='root'; 

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '你的密码';