Toolkit for working with and mapping geospatial data
A powerful, cross platform, SQL database system
A Java SQL client for any JDBC compliant database
An object relational-mapping (ORM) library for Java
Deductive Database with Datalog, SQL, RA, TRC, DRC
Database Subsetter and Relational Data Browser
DAO for all database server types with the Java POJO code generator
Database Replication, Filtered Synchronization, and Transformation
Java Application Framework
Automated tests with databases: prep, verify, restore tables
Java persistence using JDO, JPA or REST
Jiddu Krishnamurti's Book of Life|Libro de la Vida
Qvu Data Service is an ad-hoc query, reporting and api data service
ETL engine based on Groovy
Applications for data management
eXist-db is a feature rich Open Source native XML database
Rel is a database management system (DBMS) that implements Tutorial D.