JDBWC is a Java JDBC Driver with its own server written-in-PHP. Suited to Java applications that require JDBC access across wide area networks like the internet but do not wish to expose the remote database-server through the remote hosts firewall.
The driver is well suited for connecting Java client applications to a (dynamic) websites database without risking the security of the database server since all exchanges use PHP as a relay agent. Java client applications can connect from dynamic or static IP's safely using the SSL protocol (plaintext is also supported).
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The JProgress project provides tools for connectivity with Java clients and the Progress database. JProgress provides an n-tier software architecture for database access for executing remote requests over WANs and the Internet.
The BioDataServer is a database integration system. It implements a mediator-wrapper architecture and offers a SQL interface. The data integration is based on user defined intergrated schema and adapter that wrap any kind of data source.
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Tiger is an object-oriented database, written in java. It uses the concept of primary keys, aggregates, relations and indexes for finding java objects in persistent storage. Tiger have support for transactions and remote access.
jDB is a small, lightweight, easily embeddable into other applications database system that has a console frontend to use to manage your own personal data, and a CGI frontend to administer and use remote databases through the web.
OpenRDF Client is an explorator of OpenRDF repositories. It could read and write on local repositories, but also on remote ones, the HTTP repositories.