統計季度的sql:
--統計第一季度的資料,festivastartltime欄位是datetime型別.
select
*from
(select
quarter
=datename
(quarter,festivastartltime),
*from
festival)
asquarterfestival
where
quarter=1
示例:usepubs
select
*from
sale
insert
into
sale
values('
麵包','
食品',500,'
2009-01-01')
insert
into
sale
values('
麵包','
食品',500,'
2009-02-01')
insert
into
sale
values('
麵包','
食品',2000,'
2009-04-01')
insert
into
sale
values('
麵包','
食品',3000,'
2009-07-01')
insert
into
sale
values('
麵包','
食品',2000,'
2009-10-01')
insert
into
sale
values('
核桃','
食品',2000,'
2009-11-01')
insert
into
sale
values('
轎車','
汽車',2000,'
2009-01-01')
select'年
'=min(
datepart
(year
, saledate)),'季
'=datename
(quarter,saledate),'型別
'=pcat,
'本季銷售量'=
sum(pcount),
'截止本季銷售量'=
sum(pcount)
from
sale
group
bydatename
(quarter,saledate),pcat
--***************
select
datename
(quarter,saledate)
from
sale
select
*from
sale
selecta.*
,(select
sum(pcount)
from
sale
where
year
(saledate)
=a.年
andpcat
=a.型別
anddatename
(quarter,saledate)
<=
a.季) as'
截止本季銷售量
'from
(select
year
(saledate) as'
年',datename
(quarter,saledate) as'
季',pcat as'
型別',sum
(pcount) as'
本季銷售量
'from
sale
group
byyear
(saledate),
datename
(quarter,saledate),pcat
) as
aorder
by季
asc
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