从ORACLE中的表中获取唯一的第5条记录

Question

我有一个名为Stud的表，其中我有一个列来存储总数。现在我需要在总列中找到第五大总数。如何执行此操作？

Answer 1

试试这个：

SELECT total FROM 
(
SELECT ROW_NUMBER() OVER (ORDER BY total DESC) as RN, total FROM Stud
) T
WHERE RN=5

Answer 2

Select total 
From
(SELECT total,
       row_number() over(order by total desc) as rn
From totalTable
)Z
Where rn=5

也可以使用ROWNUM伪列

来完成

Select total 
From
    (SELECT total
     FROM totalTable
     ORDER BY total desc
    )Z
Where ROWNUM=5