While I was going through Sqlite documentation. I found this database (Though it is not one in true sence) is very flexible.It could be used as a prototype for your project. Moreover the best part I liked about it was, the ability to write a front end application in windows command shell.
Which goes something like this
- Download the sqlite application
- Create a database by sqlite3.exe test.db
- Create the tables
- Write a simple batch file to query and insert data into database
I would come up with more examples lateron on my blog.