如何对记录进行分组后再按字段排序?
有记录如下:
productID   producttype   productsort
___________________________________
1                     caps                     6
2                     inject                 2
3                     caps                     4
4                     caps                     2
5                     inject                 4
6                     wheel   chair       3
7                     caps                     5
8                     wheel   chair       2
9                     inject                 1
10                   wheel   chair       1

我想按producttype   分组后再   productsort   排序
如下语句怎么无法实现:
select   *   from   product   wher   1=1   group   by   producttype   order   by   productnewsort   desc

------解决方案--------------------
select * from product group by producttype order by productsort desc
------解决方案--------------------
SELECT SUM(productID),producttype SUM(productsort)
FROM Product
ORDER By producttype
Order by productsort

你的要求存在问题,既然要分组，肯定是想进委汇总或处理某项，如果使用SELECT * ，和未分组有什么两样？你的要求有点混乱...
------解决方案--------------------
分组一般意味着统计,你是想productsort要合计起来的吧?
SELECT producttype, SUM(productsort) AS p
FROM product
GROUP BY producttype
ORDER BY p DESC
------解决方案--------------------
group by fieldname order by fieldname

------解决方案--------------------
你的要求不是分组，是按两个字段排序而已：
select * from product order by producttype,productsort DESC
------解决方案--------------------
select * from product order by producttype asc,productsort desc
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同意
------解决方案--------------------
--try
select max(productID) as productID, producttype, max(productsort) as productsort
from product
group by producttype
order by 3 desc



------解决方案--------------------

create table product(productID int, producttype nvarchar(20), productsort int)
insert product select 1, 'caps ', 6
union all select 2, 'inject ', 2
union all select 3, 'caps ', 4
union all select 4, 'caps ', 2