Rel (DBMS)

Rel
Rel is an open-source true relational database management system that implements a significant portion of Chris Date and Hugh Darwen's Tutorial D query language.wikipedia
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Relational model

relationalrelational data modelrelationships
Rel is an open-source true relational database management system that implements a significant portion of Chris Date and Hugh Darwen's Tutorial D query language.
Rel is one of the more recent attempts to do this.

Database

database management systemdatabasesDBMS
Rel is an open-source true relational database management system that implements a significant portion of Chris Date and Hugh Darwen's Tutorial D query language.
Honeywell wrote MRDS for Multics, and now there are two new implementations: Alphora Dataphor and Rel.

D (data language specification)

Tutorial DD
Rel is an open-source true relational database management system that implements a significant portion of Chris Date and Hugh Darwen's Tutorial D query language.
Rel is an implementation of Tutorial D.

Open-source software

open sourceopen-sourceopen source software
Rel is an open-source true relational database management system that implements a significant portion of Chris Date and Hugh Darwen's Tutorial D query language.

Christopher J. Date

Chris DateC. J. DateC.J. Date
Rel is an open-source true relational database management system that implements a significant portion of Chris Date and Hugh Darwen's Tutorial D query language.

Hugh Darwen

Darwen
Rel is an open-source true relational database management system that implements a significant portion of Chris Date and Hugh Darwen's Tutorial D query language.

Query language

querydatabase query languageData query language
Rel is an open-source true relational database management system that implements a significant portion of Chris Date and Hugh Darwen's Tutorial D query language.

Java (programming language)

JavaJava programming languageJava language
Primarily intended for teaching purposes, Rel is written in the Java programming language.

Relational database

relational database management systemRDBMSrelational databases

Relational algebra

joinJoin (relational algebra)relational logic
Rel is an implementation of Tutorial D.