last=HolderChangeHistory.find_by_sql
(["               SELECT * FROM holder_change_histories
                  where treasure_id = ?
                  order by id desc  
                  limit   1,1  ",
                  @hch.treasure_id])

select   *    
              from   tablename   a     
              where   ( 
                  select   count(*)    
                       from   tablename   b    
                       where   a.id<b.id)=1 

select   *    
                from   tb1    
                order   by   tb1.id   desc    
                limit   1,1;