Some use a Microsoft RDBMS and some use an Oracle RDBMS. I've been studying to become an Oracle Database SQL Expert and will take the exam in 1 - 2 months.

Oracle Database 21c is the result of four decades of development. Oracle Database was the first commercial SQL-based relational database (1979), implemented based on a published IBM specification.

Apache Hadoop has been a great technology for storing large amounts of unstructured data, but to do analysis, users still need to reference data from existing RDBMS based systems. This topic was ...

Oracle says it has big plans to keep Amazon from grabbing more of its database customers away. Executive chairman Larry Ellison said that Oracle's latest, greatest database is coming in January.

Amazon RDS (Relational Database Service) is a web service that facilitates running an RDBMS in the AWS cloud. It supports PostgreSQL database engines, along with four other popular engines (Oracle, ...