Toolkit for working with and mapping geospatial data
free DB GUI Tool
A small, simple and immutable ORM to manage relational data
World's first open source data quality & data preparation project
Helping users to quickly understand SQL queries
Java library to remove Object/Relation Impedance
Web based GUI tool to manage your data stored in Apache Cassandra
Comprehensive database monitoring solution for SQL Server 2005+
Very easy to use databrowser and query console for SQLite3 based on QT
A GUI tool for converting schema and migrating data from RDB to HBase