install mysql ubuntu 18.04
sudo apt update
sudo apt install mysql-server
sudo mysql_secure_installation
install mysql 8 ubuntu 18.04
apt update
apt install wget
wget wget -c https://repo.mysql.com//mysql-apt-config_0.8.13-1_all.deb
dpkg -i mysql-apt-config_0.8.13-1_all.deb
apt update
apt install mysql-server
install mysql ubuntu
//follow this blog
https://www.digitalocean.com/community/tutorials/how-to-install-mysql-on-ubuntu-18-04
source : https://www.codegrepper.com/code-examples/sql/install+mysql+ubuntu+18.04