In this article, I will connect to an Oracle database running in the cloud (Oracle Autonomous Data Warehouse) and make a simple regression application in python environment with a sample data taken from here.
First of all, I will make this application in Autonomous Data Warehouse (DB) which is offered as a service in Oracle Cloud. All I need is an Oracle Cloud account. You can get Autonomous Data Warehouse service, which is one of the services of Always Free (Oracle Free Tier), free of charge and you can provision and use it on the Cloud in minutes without any installation. You can follow the link for detailed information.