MySQL and PostgreSQL are generally easier to install than Oracle because Oracle is designed for large firms with complex and demanding database processing requirements. My experience with PostgreSQL on Windows 10 and the Mac OS indicates that it is easy to install and use. This installation tutorial should be helpful for installing the PostgreSQL database server on Windows 10. PostgreSQL also has versions for the Mac OS and various Linux distributions such as Ubuntu, Debian, and Red Hat. The pgAdmin client for PostgreSQL provides a convenient integrated development environment to connect with PostgreSQL servers and execute SQL statements. PgAdmin has client software for Windows 10, Mac OS, and many Linux distributions. For the Mac OS, you can also use Postgres.app as a client connecting to a PostgreSQL server.