Question

With :limit in query, I will get first N records. What is the easiest way to get last N records?

Answer 1

Updated Answer (2020)

You can get last N records simply by using last method:

Record.last(N)

Example:

User.last(5)

Returns 5 users in descending order by their id.

Deprecated (Old Answer)

An active record query like this I think would get you what you want (‘Something’ is the model name):

Something.find(:all, :order => "id desc", :limit => 5).reverse 

edit: As noted in the comments, another way:

result = Something.find(:all, :order => "id desc", :limit => 5)  while !result.empty?         puts result.pop end