If you only need to use Oracle XE and don't care about a native installer, Docker is the easiest. You don't even need to manually download a file.
Below is a detailed guide on how to acquire and set up this free, full-featured database. 1. Pre-Download Requirements how to download oracle xe
Use SQL*Plus (comes with the install):
Even with the best instructions, things go wrong. Here are solutions to the most frequent problems. If you only need to use Oracle XE