Oracle Database

An Oracle database consists of a collection of data managed by an Oracle database management system. Popular general usage also uses the term to refer to the Oracle DBMS management software, but not essentially to a specific database under its control.
One can refer to the Oracle database management system as Oracle DBMS or (since it manages databases which have relational characteristics) as Oracle RDBMS.
Oracle Corporation itself blurs the very useful distinction between:
1. data managed by an Oracle RDBMS
2. an Oracle database, and
3. the Oracle RDBMS software itself
when it refers now to the Oracle RDBMS (the software it sells for the purpose of managing databases) as the Oracle Database. The difference between the managed data (the database) and the software which manages the data (the DBMS / RDBMS) relies, in Oracle's marketing literature, on the capitalization of the word database.
Oracle Corporation produces and markets the Oracle DBMS, which many database applications use widely on many popular computing platforms.