search for: predifiend

Hi to this Group! I am new to Ruby! I am facing problrm s to find the database functions. I want the source of sites for predifiend functions for handling the database. I develpong the shoping cart application, In that i am facing problems to delete the perticuller item form cart . I got idea to delete the total cart information using sesiions I want to delete the perticuller item form order I want only the source of...