sqlserver 查询出每个月销售的最好的产品

表结构

create table prodects

(

id uniqueidentifier,

pname nvarchar(50),

ptype int,

money int,

months int,

datatime date

)

drop table prodects

truncate table prodects

insert into prodects values(NEWID(),'书本',1,RAND()*1000,1,'2024-01-01')

insert into prodects values(NEWID(),'笔',2,RAND()*1000,1,'2024-01-02')

insert into prodects values(NEWID(),'手机',3,RAND()*1000,1,'2024-01-03')

insert into prodects values(NEWID(),'桌子',4,RAND()*1000,1,'2024-01-04')

insert into prodects values(NEWID(),'书本',1,RAND()*1000,2,'2024-02-01')

insert into prodects values(NEWID(),'笔',2,RAND()*1000,2,'2024-02-02')

insert into prodects values(NEWID(),'手机',3,RAND()*1000,2,'2024-02-03')

insert into prodects values(NEWID(),'桌子',4,RAND()*1000,2,'2024-02-04')

SELECT c.money,pname FROM (SELECT

SUM(money) money,

pname

FROM prodects

group by

months,pname) B right JOIN

(

select max(money) AS money from (SELECT

months ,

SUM(money) money,

pname

FROM prodects

group by

months,pname) a group by months)

C ON B.MONEY =C.money