 - Ingres is a relational database management system (RDBMS) that evolved from a research project at the University of California at Berkeley in the 1970s. There are two different versions of Ingres: a public domain
version, known as University Ingres or Berkeley Ingres;
and a commercial version currently marketed by Computer Associates, and
known as OpenIngres, CA-OpenIngres, or Ingres II.
The commercial version of Ingres II runs on the following operating systems: Windows NT,
the majority of Unix platforms,
OpenVMS, and Linux. Like many of its RDBMS
competitors, Ingres has begun to add object-oriented development features to
address the growing paradigm shift in the RDBMS marketplace towards more
object-oriented database management systems (OODBMSs).
OpenIngres uses SQL and some
forms of QUEL as its language for queries and database transactions. QUEL is a
language developed for use with the original public domain version and still
supported by it today.
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01 Apr 2005
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