Oracle is making the latest long-term support release version of its database offering — Database 23c — generally available for enterprises under the name Oracle Database 23ai.

The sample database schemas provide a common platform for examples in each release of Oracle Database. The following schemas are included: HR: Human Resources - useful for introducing basic topics.; ...

Oracle DB rivals Microsoft’s SQL Server in the enterprise database market. There are other database offerings, but most of these command a tiny market share compared to Oracle DB and SQL Server.