DB Object builder is a simple tool which can generate a lot of Java source file for you.
Each Java source file map to a table in your database. It is like Hibernate, but it is smaller than it and do not use any complex XML configuration files.
...Currently Pony works with SQLite, MySQL, PostgreSQL and Oracle databases.
Pony ORM also include the ER Diagram Editor which is a great tool for prototyping. You can create your ER diagram online at https://editor.ponyorm.com, generate the database schema based on the diagram and start working with the database using declarative queries in seconds.
GLORP (Generic Lightweight Object-Relational Persistence) is a simple Smalltalk object-relational mapping tool using a non-intrusive architecture. This is a Camp Smalltalk Project (http://camp.smalltalk.org). Development is primarily hosted in the Ci
Pymerase is a tool intended to generate a python object model, relational database, and an object-relational model connecting the two. However it has been extended to also output webpages and can be easily extended to output whatever else you might like.
RDBS2J is a GUI based mapping tool from relational database schema to persistent java classes which use JDO as persistence mechanism. The mapping can be modified by the GUI. The current version is designed to create code for Apache-OJB.
The cplusql distributed ETL tool extracts and transforms row based data from
databases and flat files for terabyte scale datawarehouse loading. RSN: beowulf job queueing and cluster fs! Every day at LookSmart, it translates 200+mm rows on 100+ nodes.