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.
Apatar is an open source Extract, Transform, and Load (ETL) project. Modular architecture delivers 1. Visual job designer/mapping 2. Connectivity to all major data sources 3. Flexible Deployment Options (GUI, or server engine with JVM, or embedded).
A Java-based GUI for querying RDF, featuring graphical results in a zoomable user interface (ZUI). RDQLPlus can work with existing RDF files and Jena2 RDF databases and comes with an embedded pure-java database.