We would like to use the CTE for this 
purpose.
Consider the following  table Emp :
1. Column : Empname varchar(30)
2. Column : CreateDdate datetime
WITH CTE AS (
    SELECT Empname , rowno = row_number() OVER(ORDER BY CreateDdate )
    FROM Emp 
 )
 SELECT *
 FROM   CTE
 WHERE  rowno BETWEEN 1 AND 5
This way we can use the CTE for selecting the Top 
keywords.