1.Mysql提示报错Too large的错误。

解决：

show variables like ‘%max_allowed_packet%‘；【默认为1M】

set global max_allowed_packet = 2*1024*1024*10

2.Mysql8.0的版本，因为比较新的mysql采用新的保密方式所以旧的似乎不能用，改密码方式：

mysql -u root -p

show databases;

use mysql；

alter user ‘root‘@‘localhost‘ identified with mysql_native_password by ‘你的新密码‘；

flush privileges;

Navicat破解码：NAVH-WK6A-DMVK-DKW3

3.mysql8.0版本差异

mysql -u root -p

show databases;

use mysql；

alter user root@localhost identified by ‘password‘ password expire never;

alter user root@localhost identified with mysql_native_password by ‘password‘;

flush privileges;