oracle 查询列表中选取其中一行

select k.SAL from (
select SAL,rownum rn from (select SAL
from SCOTT.EMP
where MGR = 7698
order by SAL desc)
) k
where rn = 2

rownum就是在查询结果中新增了一行num

SAL RN
---------   ----------
1600.00    1
1500.00    2
1250.00    3
1250.00    4
950.00      5

原文地址:https://www.cnblogs.com/uftwkb24/p/9626898.html