高人来啊~求一条SQL语句~
表movie中
id mnet
1 10
2 20
3 20
4 30
5 40
6 10
7 10
8 20
9 20
10 20
取5条出来,让其mnet总和等于100
如:id=2,id=4,id=6,id=8,id=9就是一组符合条件的
请教ING...
谢谢了~~
------解决方案--------------------select
a.id,b.id,c.id,d.id,e.id
from
movie a,
movie b,
movie c,
movie d,
movie e
where
a.id <b.id and b.id <c.id and c.id <d.id and d.id <e.id
and
a.mnet+b.mnet+c.mnet+d.mnet+e.mnet=100
------解决方案-------------------- declare @sum int
declare @id varchar(50)
declare @table table([id] int, mnet int)
while(1=1)
begin
insert into @table([id], mnet) select top 5 [id], mnet from t_test order by newid()
select @sum = sum(mnet) from @table
if(@sum = 100)
break
delete @table
end
select * from @table