Question

Date                                Sale               Product Name
+---------------------------+------------+-----------+--------------+ 
2018-10-25 05:27:35.9070422         1000                 P1
2018-10-18 05:27:35.9070422         2000                 P2
2018-10-2 05:27:35.9070422          3050                 P3
2018-10-10 05:27:35.9070422         1000                 P4
2018-10-5 05:27:35.9070422          1000                 P5

假设今天是26-05-18

所以我的结果应该像这样。

 Week                     Sales
+--------------------+------------+
 1                       4050
 2                       1000
 3                       2000
 4                       1000

Answer 1

对于星期几，您可以使用PARTDATE（）函数，所以您的查询应该是：

select partdate(WK,r.date) numweek, sum(r.sales) totsales 
from yourtable r
group by partdate(WK,r.date)

请看一下Get week number from dates in T-SQL

您还可以从partdate（WK，r.date）减去N数值，然后提防group by子句，从1开始选择星期。

希望这可以为您提供帮助

Answer 2

您需要row_number()：

select row_number() over (order by datepart(week, t.date)) as week, sum(t.amount) as sales
from table t
group by datepart(week, t.date);

我想在SQL中按周设置以下表组中的数据

2 个答案: