...

sudo systemctl restart postgresql

Инсталляция MySql (Ubuntu)

sudo apt update
sudo apt upgrade
sudo apt install mysql-server
sudo mysql_secure_installation

Заходим в MySql:

sudo mysql

SET GLOBAL validate_password.policy=LOW;

alter user 'root'@'localhost' identified by '7qaskfhb&#!823DD';

create database demo;

CREATE USER 'mystorage'@'localhost' identified by 'mystorage';

GRANT ALL PRIVILEGES ON dbTest.* To 'mystorage'@'localhost';

exit

mysql -u root -p demo < demo_dump.sql