The CRUD application is developed in some very simple steps. (Java DB is Sun's distribution of Apache Derby. Java DB is distributed with every copy of the JDK, starting with JDK 6.)
[ Technology ]
Community Statistics for Netbeans Database Usage
"The database support in NetBeans allows users to connect to a database and view and modify the database structure and data. These graphs show which database servers users connect to most often."
Of particular note, besides the large usage of MySQL and Oracle, is the large usage of Java DB (Derby), and the significant PostgreSQL usage.
This release brings together integrated web stack (Apache, MySQL, Ruby, Php, PostgreSQL), NetBeans 6.0, interoperability with Microsoft's CIFS protocol, support for virtual machines via Sun xVM hypervisor, based on
technology developed by the Xen community, Sun HPC ClusterTools based on the Open MPI effort.
Blogging from Berkeley, David Van Couvering, a database technologist at Sun Microsystems, has recently written some pieces examining PostgreSQL on Solaris. (I certainly look forward to even more such pieces, or maybe some pieces on migration from Oracle or MySQL. I think there are some interesting topics to explore in those areas when it comes to tooling.)