Selecting Nth Record in an SQL Query

Question

I have an SQL Query that i\'m running but I only want to select a specific row. For example lets say my query was:

Select * from Comments

L

Answer 1

select top 1 *
from TableName
where ColumnName1 in
(
    select top nth ColumnName1
    from TableName
    order by ColumnName1 desc
)
order by ColumnName1 desc