项目中碰到一个统计问题：生产派工单需要按名称进行分组，每一组的“标准工时”和“实际工时”需要进行按组统计。统计后的数据再进行分页显示。截图如下
UI图：
数据表结构图：
为了实现效果 模拟数据如下：
create table Test
(
ID int identity(1,1) primary key not null,
ProductName varchar(20),
PassCount int,
DisPassCount int,
CraftHour numeric(18,2),
StartDate datetime,
EndDate datetime
)
--插入数据
insert Test values('name1',10,1,1,'2001-1-1','2001-1-2')
insert Test values('name2',20,20,2,'2001-1-2','2001-1-3')
insert Test values('name2',20,20,2,'2001-1-4','2001-1-5')
insert Test values('name3',30,3,1,'2001-1-11','2001-1-12')
insert Test values('name4',13,3,1,'2001-1-12','2001-1-13')
insert Test values('name5',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name6',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name7',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name8',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name9',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name10',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name11',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name12',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name13',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name14',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name15',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name16',3,3,1,'2001-1-14','2001-1-15')
insert Test values('name17',3,3,1,'2001-1-14','2001-1-15')
--分页前
select ProductName as '产品名称',sum((PassCount+DisPassCount)*CraftHour) as '标准工时',sum(DATEDIFF(hour,StartDate,EndDate)) as '实际工时' from Test group by ProductName
order by ProductName desc
--分页后(每一页5条记录)
select top 5 ProductName,sum((PassCount+DisPassCount)*CraftHour),sum(DATEDIFF(hour,StartDate,EndDate)) from Test group by ProductName,ID
having ProductName not in (select top (0*5) ProductName
from Test group by ProductName order by ProductName desc) order by ProductName desc
--分组后的记录行数
select COUNT(*) from (select distinct ProductName from Test) as a
模拟数据截图：
应该还有更好的做法，希望你能提点建议，不胜感谢。