linux mysql

mysql enterperise企业版是收费的，mysql communite社区版是免费的。


sudo apt-get autoremove --purge mysql-server-5.7 
#sudo apt-get remove mysql-server         # 没用到,已经没有mysql-server
#sudo apt-get autoremove mysql-server    # 没用到,已经没有mysql-server
sudo apt-get remove mysql-common
sudo rm -rf /etc/mysql/  /var/lib/mysql    #很重要
#清理残留数据
dpkg -l |grep ^rc|awk ‘{print $2}‘ | sudo xargs dpkg -P  
sudo apt autoremove
sudo apt autoreclean

root@ubuntu:/# service mysql status
● mysql.service - MySQL Community Server
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
   Active: active (running) since 日 2018-02-25 04:29:41 PST; 19min ago
  Process: 1486 ExecStartPost=/usr/share/mysql/mysql-systemd-start post (code=exited, status=0/
  Process: 1375 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SU
 Main PID: 1485 (mysqld)
    Tasks: 28
   Memory: 79.4M
      CPU: 1.235s
   CGroup: /system.slice/mysql.service
           └─1485 /usr/sbin/mysqld

2月 25 04:29:22 ubuntu systemd[1]: Starting MySQL Community Server...
2月 25 04:29:41 ubuntu systemd[1]: Started MySQL Community Server.

root@ubuntu:/# service mysql start
root@ubuntu:/# mysql -u root -p
Enter password: