Ingres RDBMS
Ingres (INteractive GRaphics REtrieval System) is one of the earliest relational database management systems (RDBMS), originally developed at the University of California, Berkeley, in the 1970s. It was a pioneering project that practically implemented E.F. Codd's relational model, significantly…
Key facts
- First appeared
- 1973
- Category
- technology
- Problem solved
- Ingres was created to address the limitations of pre-relational database systems, such as hierarchical (e.g., IBM IMS) and network (e.g., CODASYL) models. These older systems were rigid, complex to navigate procedurally, lacked data independence, and were difficult to manage and extend, making application development cumbersome and maintenance costly.
- Platforms
- Mainframe (limited), Unix-like systems (initially DEC PDP-11, VAX, SunOS, HP-UX, AIX), Linux, OpenVMS, Microsoft Windows
Related technologies
Notable users
- Manufacturing companies (historically)
- Government agencies (historically)
- Existing enterprises with long-standing Ingres deployments
- Telecommunications companies (historically)
- Financial institutions (historically)