| Developer(s) | ENEA AB |
|---|---|
| Initial release | 30 June 1993 |
| Stable release | 9.7
/ 17 December 2021 |
| Operating system | Linux, Windows, Solaris, VxWorks, LynxOS, Integrity, OSE |
| Type | in-memory RDBMS; flash-based RDBMS |
| License | Proprietary, with Polyhedra Lite available as Freeware[1] |
| Website | enea |
Polyhedra is a family of relational database management systems offered by ENEA AB, a Swedish company. The original version of Polyhedra (now referred to as Polyhedra IMDB) was an in-memory database management system which could be used in high availability configurations; in 2006 Polyhedra Flash DBMS was introduced to allow databases to be stored in flash memory.[2] All versions employ the client–server model to ensure the data are protected from misbehaving application software, and they use the same SQL, ODBC and type-4 JDBC interfaces. Polyhedra is targeted primarily for embedded use by Original Equipment Manufacturers (OEMs), and big-name customers include Ericsson, ABB, Emerson, Lockheed Martin, United Utilities and Siemens AG.