无法在Ubuntu（Emma）上通过套接字'var run mysqld mysqld.sock连接到mysql服务器

Question

我收到此错误

cannot connect to mysql server through socket 'var/run/mysqld/mysqld.sock'(2)

当我单击mysql（Emma）localhost时出现此错误，我对其进行了谷歌搜索 ，但没有用，并且在下面的命令中给出了尝试，但仅得到错误。

 $ps ax | grep mysql
   4348 pts/5    S+     0:00 grep --color=auto mysql
 $sudo service mysql start
   Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details.
 $sudo /etc/init.d/mysql start
   [....] Starting mysql (via systemctl): mysql.serviceJob for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details. failed!

我该怎么办，有人可以给我建议吗

Answer 1

我得到以上问题的答案

    1.sudo apt-get remove --purge mysql-server-5.6
    2.sudo apt-get autoremove
    3.sudo apt-get autoclean
    4.sudo rm -rf /var/lib/mysql
    5.sudo rm -rf /etc/mysql
    6.sudo apt purge mysql-server mysql-server-5.7
    7.sudo apt install mysql-server-5.7
    8.service mysql start

参考

一切正常！