Answers for "how to install mysql 8.0 to 5.7 on ubuntu 20.10"

ubuntu install mysql 8.0

wget -c https://dev.mysql.com/get/mysql-apt-config_0.8.11-1_all.deb

install mysql 5.7 ubuntu 20.04

sudo apt install -f mysql-client=5.7.32-1ubuntu18.04 mysql-community-server=5.7.32-1ubuntu18.04 mysql-server=5.7.32-1ubuntu18.04

ubuntu install mysql 5.7

Installing MySQL 5.7 on Ubuntu 20.04 (Focal Fossa)
Step 1: Add MySQL APT repository in Ubuntu. ...
Step 2: Update MySQL Repository on Ubuntu. ...
Step 3: Install MySQL 5.7 on Ubuntu 20.04 Linux machine. ...
Step 3: Secure MySQL 5.7 Installation on Ubuntu 20.04. ...
Check MySQL version. ...
Step 4: Create MySQL User (Optional, testing only)