我想通过将ID作为分组列来扩展此答案here。我尝试将一个'小组包括在内。条款没有成功。
+----------+--------------+----------
|NAV_Date |NetAssetValue | ID |
+----------+--------------+---------+
|12/31/2012| $4,000| A |
+----------+--------------+---------+
|03/31/2013| $5,000| A |
+----------+--------------+---------+
|12/31/2012| $4,000| B |
+----------+--------------+---------+
|03/31/2013| $5,000| B |
+----------+--------------+---------+
select NAV_date, NAV_value, (NAV_value / prev_value) - 1
from (select t.*,
(select top 1 NAV_value
from YOURTABLENAMEGOESHERE as t2
where t2.NAV_date < t.NAV_date
group by Nav_ID, Nav_value
order by t2.NAV_date desc
) as prev_value
from YOURTABLENAMEGOESHERE as t
) as t
答案 0 :(得分:1)
试试这个:
select
NAV_date,
NAV_value,
(NAV_value /
(select top 1 NAV_value
from YOURTABLENAMEGOESHERE as t2
where t2.NAV_date < t.NAV_date
order by t2.NAV_date desc) - 1
from
YOURTABLENAMEGOESHERE as t