Open Source Java Database Management Systems (DBMS)

ERMaster is Eclipse plug-in to make ER diagram. Functionally, Import from data base, Making of table definition book on Excel, Image output, DDL output, etc. are being offered.

OrientDB is an Open Source Multi-Model NoSQL DBMS with the support of Native Graphs, Documents, Full-Text search, Reactivity, Geo-Spatial and Object Oriented concepts. It's written in Java and it's amazingly fast. No expensive run-time JOINs, connections are managed as persistent pointers between records. You can traverse thousands of records in no time. Supports schema-less, schema-full and schema-mixed modes. Has a strong security profiling system based on user, roles and predicate security and supports SQL amongst the query languages. Thanks to the SQL layer it's straightforward to use for people skilled in the Relational world. OrientDB adheres to the NoSQL movement even though it supports ACID Transactions and SQL as query language. In this way it's easy to start using it without having to learn too much new stuff.

DataNucleus provides Java data persistence to a range of datastores using JDO/JPA/REST APIs. *** Note that code development is no longer on SourceForge (code on SourceForge is for versions up to 3.3.5 only) ***

UI To the Hadoop HBase Project

Rel is a DBMS primarily intended for educational purposes, but also suitable as a desktop DBMS or lightweight server, that implements Date and Darwen's "Tutorial D" true relational database language. Source code is available at https://github.com/DaveVoorhis/Rel

DbRevision project aimed to help developers implement automatic upgrade database structure from one reversion to other. DB structure described in independent, XML-based format. All upgrade actions described in XML too.

Liquibase is an open source, database-independent library for tracking, managing and applying database changes See more at http://liquibase.org

MongOz is a MongoDB client, intended to be multi-platform. It's written in Java as backend (to handle the MongoDB connections) and Javascript / HTML5 / CSS3 as frontend, in order to have a modern interface, besides being easy to change as desired.

The Technology Explorer for IBM DB2 is a light weight, web based console for DB2 that helps you learn about DB2 using demonstrations and tutorials. The TE is designed from the ground up to be easy to use and customize to suit your needs.