Question

我正在尝试根据我的数据库制作摘要报告。它必须按位置逐年分组，我想要总计该分组中的订单数量。

需要看起来像：

Year    Week    Location    Total Amount
2014    1       Atlanta     22,000 
2014    1       Schaumberg  32,566 
2014    1       Dallas      32,567 
2014    1       New York    32,356 
2014    2       Atlanta     22,000 
2014    2       Schaumberg  32,566 
2014    2       Dallas      32,567 
2014    2       New York    32,356

我的表（system_order）结构设置如下：

Order   Amount  Location    Week    Year
1       1895    Schaumberg  1       2014
2       1295    Atlanta     1       2014
3       1895    Atlanta     1       2014
4       1895    New York    1       2014
5       1495    Dallas      2       2014
6       1695    Schaumberg  2       2014
7       1895    Schaumberg  2       2014
8       1895    Dallas      2       2014
9       1895    New York    2       2014

可以在一个sql语句中完成吗？

Answer 1

SELECT Year, Week, Location, sum(Amount) as 'Total Amount'
FROM [system_order] 
GROUP BY Location, Week, Year

Answer 2

我没有测试。这应该是公共汽车。

select sum(amount), year,week,location
from (system_order)
group by Location, week, year
order by sum(amount)

Answer 3

通常，您必须将所选行放入group by子句中。例外情况是它们是否在select子句中的聚合函数中。

这就应该有效。

Select Year
       ,Week
       ,Location
       ,sum(amount) as 'Total_Amount'
from (system_order)
group by Year
       ,Week
       ,Location

使用多个分组创建sql语句

3 个答案: