Alzabo
Alzabo is a two-fold program. Its first function is as a data modelling tool. Through either a schema creation interface or a custom perl program, you can create a set of schema, table, column, etc. objects that represent your data model. Alzabo is also capable of reverse engineering an existing data model. Its second function is as a RDBMS to object mapping system. Once you have created a schema, you can use the Alzabo::Runtime::Table and Alzabo::Runtime::Row classes to access its data. These classes offer a low level interface to common operations such as SQL SELECT, INSERT, DELETE, and UPDATE commands.