It was the first time Oracle offered a free version of their commercial database with a very permissive license, aimed at competing with open-source alternatives like MySQL and PostgreSQL.

The primary interface was browser-based. Upon logging in as SYSTEM , users were presented with a dashboard showing storage usage, database activity, and object browsers. This was designed for users who were not comfortable with command-line interfaces (CLI).

While it is now obsolete, it serves as the template for Oracle's modern "Always Free" tiers and current XE releases.

It supports popular programming interfaces including SQL, PL/SQL, Java, C, PHP, and .NET .