Optimizing queries for the next and previous element

Question

I am looking for the best way to retrieve the next and previous records of a record without running a full query. I have a fully implemented solution in place, and would like to

Answer 1

You could save the row numbers of the ordered lists into views, and you could reach the previous and next items in the list under (current_rownum-1) and (current_rownum+1) row numbers.