SQL获取总数并同时使用pivot
我有两张这样关系的桌子 我有一个这样的数据集 并希望获得所有记过、代码、描述、到目前为止任何月份(任何一年)的记过代码的犯罪总数,以及记过代码的犯罪总数 每个月(任何一年)的代码,基本上是这样的结果 我可以分别获得总数(使用GROUPBY)和月度数据(使用pivot行作为列),但不知道如何在一个查询中获得它们。任何帮助都将不胜感激SQL获取总数并同时使用pivot,sql,oracle,pivot,Sql,Oracle,Pivot,我有两张这样关系的桌子 我有一个这样的数据集 并希望获得所有记过、代码、描述、到目前为止任何月份(任何一年)的记过代码的犯罪总数,以及记过代码的犯罪总数 每个月(任何一年)的代码,基本上是这样的结果 我可以分别获得总数(使用GROUPBY)和月度数据(使用pivot行作为列),但不知道如何在一个查询中获得它们。任何帮助都将不胜感激 select * from ( select d.dem_code, d.dem_code as dem_code_co
select * from (
select
d.dem_code,
d.dem_code as dem_code_copy,
d.dem_description,
case
when EXTRACT(month FROM off_datetime) = 1 then 'Jan'
when EXTRACT(month FROM off_datetime) = 2 then 'Feb'
when EXTRACT(month FROM off_datetime) = 3 then 'Mar'
when EXTRACT(month FROM off_datetime) = 4 then 'Apr'
when EXTRACT(month FROM off_datetime) = 5 then 'May'
when EXTRACT(month FROM off_datetime) = 6 then 'Jun'
when EXTRACT(month FROM off_datetime) = 7 then 'Jul'
when EXTRACT(month FROM off_datetime) = 8 then 'Aug'
when EXTRACT(month FROM off_datetime) = 9 then 'Sep'
when EXTRACT(month FROM off_datetime) = 10 then 'Oct'
when EXTRACT(month FROM off_datetime) = 11 then 'Nov'
when EXTRACT(month FROM off_datetime) = 12 then 'Dec'
end
as "Month"
from demerit d
left join offence o on d.dem_code = o.dem_code
order by d.dem_code
)
pivot(
count(dem_code_copy)
for "Month"
in (
'Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'
)
)
这个查询给我每月的结果
此查询提供了总数
我只想使用条件聚合:
select d.dem_code, d.dem_description,
sum(case when EXTRACT(month FROM off_datetime) = 1 then 1 else 0 end) as Jan,
sum(case when EXTRACT(month FROM off_datetime) = 2 then 1 else 0 end) as Feb
sum(case when EXTRACT(month FROM off_datetime) = 3 then 1 else 0 end) as Mar,
sum(case when EXTRACT(month FROM off_datetime) = 4 then 1 else 0 end) as Apr,
sum(case when EXTRACT(month FROM off_datetime) = 5 then 1 else 0 end) as May,
sum(case when EXTRACT(month FROM off_datetime) = 6 then 1 else 0 end) as Jun,
sum(case when EXTRACT(month FROM off_datetime) = 7 then 1 else 0 end) as Jul,
sum(case when EXTRACT(month FROM off_datetime) = 8 then 1 else 0 end) as Aug,
sum(case when EXTRACT(month FROM off_datetime) = 9 then 1 else 0 end) as Sep,
sum(case when EXTRACT(month FROM off_datetime) = 10 then 1 else 0 end) as Oct,
sum(case when EXTRACT(month FROM off_datetime) = 11 then 1 else 0 end) as Nov,
sum(case when EXTRACT(month FROM off_datetime) = 12 then 1 else 0 end) as Dec
from demerit d left join
offence o
on d.dem_code = o.dem_code
group by d.dem_code, d.dem_description;
这正是我想要的。非常感谢你。
select d.dem_code, d.dem_description,
sum(case when EXTRACT(month FROM off_datetime) = 1 then 1 else 0 end) as Jan,
sum(case when EXTRACT(month FROM off_datetime) = 2 then 1 else 0 end) as Feb
sum(case when EXTRACT(month FROM off_datetime) = 3 then 1 else 0 end) as Mar,
sum(case when EXTRACT(month FROM off_datetime) = 4 then 1 else 0 end) as Apr,
sum(case when EXTRACT(month FROM off_datetime) = 5 then 1 else 0 end) as May,
sum(case when EXTRACT(month FROM off_datetime) = 6 then 1 else 0 end) as Jun,
sum(case when EXTRACT(month FROM off_datetime) = 7 then 1 else 0 end) as Jul,
sum(case when EXTRACT(month FROM off_datetime) = 8 then 1 else 0 end) as Aug,
sum(case when EXTRACT(month FROM off_datetime) = 9 then 1 else 0 end) as Sep,
sum(case when EXTRACT(month FROM off_datetime) = 10 then 1 else 0 end) as Oct,
sum(case when EXTRACT(month FROM off_datetime) = 11 then 1 else 0 end) as Nov,
sum(case when EXTRACT(month FROM off_datetime) = 12 then 1 else 0 end) as Dec
from demerit d left join
offence o
on d.dem_code = o.dem_code
group by d.dem_code, d.dem_description;