Search Results for "algebra"

doobie is a pure functional JDBC layer for Scala and Cats. It is not an ORM, nor is it a relational algebra; it simply provides a functional way to construct programs (and higher-level libraries) that use JDBC. For common use cases doobie provides a minimal but expressive high-level API. doobie is a Typelevel project. This means we embrace pure, typeful, functional programming, and provide a safe and friendly environment for teaching, learning, and contributing as described in the Scala Code of Conduct. ...

The Datalog Educational System (DES) is a deductive database with Datalog, SQL, Relational Algebra, Tuple Relational Calculus and Domain Relational Calculus as query languages developed mainly for education. It can be used from most common Prolog interpreters over any supported OS and from portable executables (Windows, Linux and MacOS).

Open source intermediate for the MySQL database network protocol written in Java language, open source of GPLv3 protocol. Custom Calcite distributed query engine, edit SQL to relationship algebra expression, rule optimization engine, and cost optimization engine, generate physical execution plan, support logic view. Any cross-currant cross-table join query, support cross-currant cross-table non-associated query, support cross-currant cross-table association query, support cross-currant cross-table Window grammar, support global secondary index, limited support storage process, support visualization configuration. ...

A relational database management system, based on the principles laid down in the book "Databases, Types, and The Relational Model: The Third Manifesto" by C. J. Date and Hugh Darwen.

Cilantro is an implementation (in Java) of "Object Algebra", a solution to the Impedance Problem. It connects object-oriented programs to relational databases. In Cilantro, queries are first-class objects and can be combined to create other queries.

LEAP is an RDBMS (Relational Database Management System) implementing the relational Algebra - a core part of relational database theory. It is primarily used as an educational tool, but has found some novel uses and applications.

AlgebraDB is database in Java. We are looking for volunteers which would like participate in this project as developers. We are planning to develop transaction system, network communication, simple GUI management system and SQL translation into AlgebraDB.