!CrocoPat manipulates relations of any arity, including graphs (which are binary relations). Its simple and expressive query and manipulation language RML is based on first-order predicate calculus. The implementation is based on the data structure binary decision diagram (BDD), which is well-known ...

=Casper Datasets= An in-memory dataset modeling / manipulation library ===Contents=== * About * Features * Tutorials & Instructions * Casper Code * Performance * Feedback / Contributing ===About=== The Casper Datasets library is, in short, a generic in-memory dataset....

SimpleDBM is a transactional database engine, written in Java. It has a very small footprint and can be embedded in the address space of an application. It provides a simple programming API, which can be learned very quickly. ==Features== SimpleDBM has the following features: # *Transacti...

Relation algebra http://web.mac.com/ben_moseley/frp/paper-v1_01.pdf

A very simple and minimal relational DBMS in Java, coded to learn about concurrency control. Basically, it lets you create custom relations and use some relation algebra operations with guaranteed isolability, and not so much guaranteed durability, atomicity and consistency, because i was lazy and d...

ORM need not be anti-relational. It is difficult to reconcile the customary record-extending, message-sending conception of OO with E.F. Codd's relational model; the "object-relational impedance mismatch" is a well-known problem for application programmers. A very common response is to model o...

Ripple is a relational, stack-based dataflow language for the Semantic Web. The Ripple project started out as a proof of concept for the annual [http://www.semanticscripting.org/SFSW2007/ "Scripting for the Semantic Web"] challenge at the 2007 European Semantic Web Conference, and has gone on to be...

<ol> <li>*Eclipse plugin* - Dreamsource ORM code generator. See a manual from <a href="http://www.leeonsoft.com/orm_plugin.jsp">www.leeonsoft.com</a>. <li>*Dreamsource ORM*<br/> It abstracts a database table metadata into a _*com.leeonsoft.jdbc.crud.Table*_ so it can programatically and concisely...

Educational project for a group of students learning to work with object, object-relational, XML and geospatial database systems.

*deebee* is an ACID-compliant embedded relational database management system Example: {{{ import deebee # connect con = deebee.connect('test.db') # create database, and tables cur = con.cursor() cur.create_database('db1') cur.create_table('db1', 't1', [{'name':'a', 'pk':True}, {'name'...