jUDO (java Universal Data Objects) handles coding against a database Independent of database (plugins for db2/Oracle/Cloudscape/mysql/mysql etc).The code is generated "runtime" , just give the method names and jUDO derives the code/sql.
A WYSIWYG database modeling tool based on eclipse,it can generate code for hibernate,ojb,ibatis,openJpa.The supported platform includes oracel,db2,mysql,mssql,sybase,derby,MaxDB,SapDB,PostgreSql,HsqlDB and the databases which has JDBC driver.
The Beerhouse web application is a well-known reference application for ASP.NET. This project will replicate that application using the WaveMaker Visual Ajax Studio by WaveMaker Software, Inc. Project Forum: http://dev.wavemaker.com