Include problems when installing mysql on Ubuntu 16.04

Several problems occurred when downloading mysql-server on ubuntu:

• When using sudo apt-get install mysql-server/client or manually unpacking and installing,
  
  enter the shell command:

sudo apt-get -f install

If the unlimited dependencies cannot be resolved, you can try to update the ubuntu source:
backup the sources.list file:

cp /etc/apt/sources.list /etc/apt/sources.list.bak

Open the sources.list file:

vi /etc/apt/sources.list

Copy the following content into sources.list:

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

Taken here from https://www.cnblogs.com/ssxblog/p/11357126.html

Enter the shell command:

sudo apt-get update
sudo apt-get upgrade

• When typing sudo apt-get install mysql-server/client, the problem of requiring a low version always appears.
  
  After trying to install a low version, it appears.
  
  Then uninstall mysql-common first

sudo apt-get remove mysql-common

Then execute:

sudo apt-get install mysql-server/client