CUBRID Manager (CM) is the most powerful database administration tool developed with DBAs in mind. It has a convenient and intuitive Graphical User Interface (GUI) and provides powerful tools to manage the databases, brokers, execute queries and view their results, and many more.
CM is distributed under the terms of BSD open source license.
A lighter version of CM called CUBRID Query Browser is available for developers. CQB may be more suitable for its simplicity and Eclipse pluggable feature.