ⓘ Empress Embedded Database is a relational database management system that has been embedded into applications, including medical systems, network routers, nucle ..

                                     

ⓘ Empress Embedded Database

Empress Embedded Database is a relational database management system that has been embedded into applications, including medical systems, network routers, nuclear power plant monitors, satellite management systems. Empress is an ACID compliant relational database management system with two-phase commit and several transaction isolation levels for real-time embedded applications. It supports both persistent and in-memory storage of data and works with text, binary, multimedia, as well as traditional data.

                                     

1. History

The first version of Empress was created by John Kornatowski and Ivor Ladd in 1979 and was originally named MISTRESS. It was based on research done on "MRS: A microcomputer database management system" at the University of Toronto, which was published by the Association for Computing Machinery in SIGSMALL SIGMOD 1981. The commercial version was one of the first available relational database management systems RDBMS and was named Empress. Its first customer ship was in early 1981. Empress was the first commercial database to be available on Linux. Its Linux release dates back to early 1995.

                                     

2. API and architecture

Empress supports many application programming interfaces in several programming languages. The C programming language has the most APIs including the low-level kernel MR Routines, Embedded SQL, MSCALL and ODBC. There are also APIs for C++ and JAVA. The layered architecture design provides levels of system optimization for application development. Applications developed using these APIs may be run in standalone and/or server modes.

                                     

3. Supported platforms

Empress runs on all major Android, Linux-, Real-Time- and Windows-supported platforms:

  • Windows CE
  • QNX Neutrino
  • Linux
  • Solaris
  • Unix
  • BlueCat Linux
  • LynxOS RTOS
  • Debian
  • AIX
  • Wind River Linux
  • Windows 7
  • HP-UX
  • Ubuntu
  • Red Hat Linux
  • Fedora
  • Windows XP
  • MontaVista Linux
  • Android
  • Windows Mobile
  • VxWorks
  • Suse Linux
                                     
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