Developing with Apache Derby -- Hitting the Trifecta
http://www-128.ibm.com/developerworks/views/opensource/libraryview.jsp?search_by=Developing+Apache+Derby+trifecta:

Brunner, Robert
IBM
2006

Abstract:

Along with creating a database schema and populating tables with data, being able to selectively modify data is one of the most important skills necessary for a database developer. This article teaches you how to selectively delete or update data in an existing table and how to modify the structure of an existing table. To perform data modifications on a more complex database schema, you'll learn about embedded subqueries, both scalar and table, with data update and data insert operations. You'll also find out how to delete and modify data in complex schemas using the Apache Derby database.