好久不写SQL了，有人知道怎么写这个分组的SQL吗？

[zlp321002]

declare @t table (id int,oid int, detailid int, sku varchar(20),name varchar(120),qty int)
insert into @t(id,oid,detailid,sku,name,qty)
select 3175902,2211450,3879244,'AU21012760','Trilogy趣乐活 天然原装有机野玫瑰果精油 45ml 0.1235',10
union all
select 3175903,2211450,3879242,'AU21012138','Freezeframe 祛皱纹眼袋黑眼圈精华眼霜 15ml 0.1',2
union all
select 3175904,2211450,3879241,'AU21012105','Pawpaw 天然木瓜膏 25克 0.1', 10
union all
select 3175905,2211450,3879243,'AU21012341','Swisse 高含量维生素C泡腾片 60片 0.455',2
union all
select 3175906,2211450,3879245,'AUEN1560','Eaoron水光洁面Hyaluronic Cleanser 100ml 0.18',1
union all
select 3175907,2211450,3879246,'AUGMW001','G_M 经典白盖日用绵羊油 250g 0.39', 3
union all
select 3175908,2211450,3879247,'AUPA1004','Pure-Ora皮尔奥亚洲参人参胶囊 （30粒） 0.15',1

select NTILE(2) over(partition by oid order by newid()) as groupCode,
*
from @t where oid=2211450


groupCode id oid detailid sku name qty
-------------------- ----------- ----------- ----------- -------------------- -------------------------------------------------- -----------
1 3175904 2211450 3879241 AU21012105 Pawpaw 天然木瓜膏 25克 0.1 10
1 3175906 2211450 3879245 AUEN1560 Eaoron水光洁面Hyaluronic Cleanser 100ml 0.18 1
1 3175907 2211450 3879246 AUGMW001 G_M 经典白盖日用绵羊油 250g 0.39 3
1 3175905 2211450 3879243 AU21012341 Swisse 高含量维生素C泡腾片 60片 0.455 2
2 3175903 2211450 3879242 AU21012138 Freezeframe 祛皱纹眼袋黑眼圈精华眼霜 15ml 0.1 2
2 3175902 2211450 3879244 AU21012760 Trilogy趣乐活 天然原装有机野玫瑰果精油 45ml 0 10
2 3175908 2211450 3879247 AUPA1004 Pure-Ora皮尔奥亚洲参人参胶囊 （30粒） 0.15 1


想根据QTY的任意组合值（之和不超过16）分组，比如：10,1,3，2 为 GroupCode=1； 2,10,1 为GroupCode=2;
现在想用一个公式计算不超过16的，现在用的是order by newid();

不知道有没有SQL能实现这需求； ：D

[唐诗三百首]

需求可能有点模糊, 每个分组的qty之和需尽量接近16吗?

[唐诗三百首]

-- 测试数据
declare @t table (id int,oid int, detailid int, sku varchar(20),name varchar(50),qty int)

insert into @t(id,oid,detailid,sku,name,qty)
select 3175902,2211450,3879244,'AU21012760','Trilogy趣乐活 天然原装有机野玫瑰果精油 45ml 0.1235',10
union all
select 3175903,2211450,3879242,'AU21012138','Freezeframe 祛皱纹眼袋黑眼圈精华眼霜 15ml 0.1',2
union all
select 3175904,2211450,3879241,'AU21012105','Pawpaw 天然木瓜膏 25克 0.1',	10
union all
select 3175905,2211450,3879243,'AU21012341','Swisse 高含量维生素C泡腾片 60片 0.455',2
union all
select 3175906,2211450,3879245,'AUEN1560','Eaoron水光洁面Hyaluronic Cleanser 100ml 0.18',1
union all
select 3175907,2211450,3879246,'AUGMW001','G_M 经典白盖日用绵羊油 250g 0.39',	3
union all
select 3175908,2211450,3879247,'AUPA1004','Pure-Ora皮尔奥亚洲参人参胶囊 （30粒） 0.15',1


-- 数据处理
set nocount on
declare @t2 table(groupcode int,id int,qty int)
declare @id int,@qty int,@groupcode int
declare ap scroll cursor for 
 select id,qty 
 from @t 
 where oid=2211450
 order by newid()

open ap
fetch first from ap into @id,@qty
select @groupcode=1
while(@@fetch_status<>-1)
begin
 if (isnull((select sum(qty) from @t2 where groupcode=@groupcode),0)+@qty>16)
 begin
   select @groupcode=@groupcode+1
 end
 
 insert into @t2(groupcode,id,qty) select @groupcode,@id,@qty  

 fetch next from ap into @id,@qty
end

close ap
deallocate ap
set nocount off


-- 结果
select b.groupcode,a.*
 from @t a
 inner join @t2 b on a.id=b.id
 order by b.groupcode

/*
groupcode   id          oid         detailid    sku                  name                                               qty
----------- ----------- ----------- ----------- -------------------- -------------------------------------------------- -----------
1           3175904     2211450     3879241     AU21012105           Pawpaw 天然木瓜膏 25克 0.1                               10
1           3175907     2211450     3879246     AUGMW001             G_M 经典白盖日用绵羊油 250g 0.39                           3
1           3175905     2211450     3879243     AU21012341           Swisse 高含量维生素C泡腾片 60片 0.455                      2
1           3175906     2211450     3879245     AUEN1560             Eaoron水光洁面Hyaluronic Cleanser 100ml 0.18              1
2           3175903     2211450     3879242     AU21012138           Freezeframe 祛皱纹眼袋黑眼圈精华眼霜 15ml 0.1               2
2           3175902     2211450     3879244     AU21012760           Trilogy趣乐活 天然原装有机野玫瑰果精油 45ml 0.1235         10
2           3175908     2211450     3879247     AUPA1004             Pure-Ora皮尔奥亚洲参人参胶囊 （30粒） 0.15                  1

(7 row(s) affected)
*/