NoDB isn't a database.. but it sort of looks like one
Java ORM
Gtk2::Ex::DbLinker - Use sql or orm objects to build a gtk2 Gui
Database SQL, query tool, using JDBC for Oracle,SQLite,PostgreSQL,etc
JspMyAdmin 2 - A Java Web tool for MySql database administration
JspMyAdmin 2 - A Java Web tool for MySql database administration
A Firebird Sql Management Tool
Query Light : A Lightweight Oracle java swing client based on JDBC
Distributed "massively parallel" SQL query engine
DataAdapter - Java library to work with Oracle and PostgreSQL database
A high performance, middleware oriented C++14 http web framework
A free, easy to use, generic CMDB written in PHP
Java library to remove Object/Relation Impedance
Flexible database for storing object relations
Oracle plugin for xymon
Data Vault loading automation using Pentaho Data Integration.
An extended Subversion client enabling versioning of database schemas
Spherical search plugin for PostgreSQL