Oracle Rdb is a relational database management system for the OpenVMS operating system. It was originally released by Digital Equipment Corporation (DEC) in 1984 as VAX Rdb/VMS.[1]
Product history
Rdb was a component of the VAX Information Architecture, and was designed to interoperate with other Digital database tools and application frameworks such as the Application Control Management System, Datatrieve and the Common Data Dictionary.[2] It originally provided a proprietary query interface known as the Relational Data Operator (RDO), but later gained support for ANSI SQL.[1]
In 1994 DEC sold the Rdb division to Oracle Corporation where it was rebranded Oracle Rdb. As of 2020, Oracle is still actively developing Rdb, with over half of the codebase developed under Oracle's ownership.