Rel

Open source true relational database and query language conforming to the D standard by Date & Darwen (or Tutorial D).

Version

 * 1.0.12 Beta (2014-10-26)


 * Prerequisites
 * Java version 5 or higher, SDK version highly recommended but not necessary if you do not intend to create new Java types or operators.
 * Note that while the 1.0.12 Beta will work on Java 5 (and 6), the 1.0.12 Release will when it comes out only work on Java 7 or higher.

Links

 * Rel homepage
 * Rel forum
 * Interview with Chris J. Date on the relational model - D and Rel get a mention.