Answer by Tim for How to select the nth row in a SQL database table?

I suspect this is wildly inefficient but is quite a simple approach, which worked on a small dataset that I tried it on.

select top 1 fieldfrom tablewhere field in (select top 5 field from table order by field asc)order by field desc

This would get the 5th item, change the second top number to get a different nth item

SQL server only (I think) but should work on older versions that do not support ROW_NUMBER().