mysql 无法连接提示 authentication plugin 'caching_sha2_password' cannot be loaded
可能是密码没有设置或者,密码设置类型不符,可参考如下步骤解决
1 查看当前账户,和密码
select user,host,password from user;
或者是否设置了authentication_string
select user,host,authentication_string,plugin from mysql.user;
2 如果没有设置,就重置密码
grant all privileges on *.* to 'yourname'@'localhost' identified by 'yourpassword'
或者对应第二种情况
alter user 'xxxx'@'%' identified with mysql_native_password by 'xxxxxxxx';
3 最后需要刷新下权限
flush privilege
4 如果是不重要的用户名,也可以通过新建用户赋予权限,
grant all privileges on *.* to 'xxx'@'localhost' identified by 'xxxx' ;
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MySQL-关系代数-并、交、差、等值连接、自然连接、左连接。。。
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