ETL engine based on Groovy
Database ERD- design tool with Reverse Engineering
Database SQL, query tool, using JDBC for Oracle,SQLite,PostgreSQL,etc
Query Light : A Lightweight Oracle java swing client based on JDBC
Data quality analysis, profiling, cleansing, duplicate detection +more
Adhoc Data Exploration - Live & Easy
Database explorer to MySQL, Oracle, Sybase & others. Source maker JSF.
Project to dinamically export queries to Excel, PDF and Jasper Viewer
Location Data Visualisation and Editing
Open source Extract Transform Load engine written in Java
A tool to convert Excel sheets into SQL code
although fully functional, this is a pre-framework that you can extend