问题,
我有这样的表格:
PID Category Year
1 AAA 2011
2 AAA 2012
3 BBB 2011
4 CCC 2010
5 CCC 2011
6 CCC 2012
我需要将输出显示为:
Subtotal Total Category Year Percentage
1 1 CCC 2010 100%
1 2 AAA 2011 50%
1 2 BBB 2011 50%
1 2 AAA 2012 50%
1 2 CCC 2012 50%
其中小计是特定年份该类别的计数。 总计是特定年份的计数,包括所有类别。 百分比为小计/总计 *100
最佳答案
select subtotal,
total,
category,
year,
subtotal / total * 100 as percentage
from (
select count(*) over (partition by category, year) as subtotal,
count(*) over (partition by year) as total,
category,
year
from the_unknown_table
) t
order by year;
关于sql - 在Oracle查询中显示总计、小计、百分比,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13826569/