Active Record - Get the second, third.. item in a database (without ID)

Question

How to I retrieve the second, third .. entries in a database. I don\'t want to use the auto incrementing id generated by rails.

As I am deleting entries from my data

Answer 1

Say you want the fourth user:

 @users = User.limit(4)
 @fourth_user = @users[3]

Concerning your second question, destroy_all should do the trick since it triggers all callbacks. Be sure to add :dependent => :destroy in your relationships.