As of 2015, Ed2go.com and Docs.Oracle.com are some of the places offering an introduction to Oracle for beginners. These sites provide online documentation consisting of chapters suitable for both teachers and learners.
Ed2go offers information regarding the course details, such as course duration in weeks, hours and resources required. Learners have the choice of starting from the first chapter or jumping to a specific chapter of the course.
Docs.Oracle.com gives a detailed overview of the introduction to Oracle database, including the architecture, features and database application development. Each of these sections includes various topics specific for beginners. Learners have the option of studying from the site or downloading a PDF file to the computer to study at their own pace.