Question

我需要汇总Amounts以按每月的日期范围显示。为了说明，请看下表：

Invoice_Payment

Customer_id    Invoice_no    Invoice_date    Amount
---------------------------------------------------
10             10023         2016-07-08      60
10             10018         2016-08-04      90
11             10016         2016-07-01      110
11             10021         2016-07-05      120
12             10028         2016-07-11      10
12             10038         2016-07-31      5

正如您所注意到的，我想根据Customer_id对它们进行分组，并将日期显示为开始结束。此外，这必须仅在每个月进行。

以下查询我到目前为止已尝试过：

select Customer_id, (mindate + ' to ' + maxdate) Date_Range, Amount
from (
     select Customer_id, sum(Amount) Amount, min(Invoice_date) mindate, max(Invoice_date) maxdate  
     from Invoice_Payment
     group by Customer_id
     ) I ;

从上面的查询中我得到Output之类的：

Customer_id    Date_Range                    Amount
10             2016-07-08 to 2016-08-04      150
11             2016-07-01 to 2016-07-05      230
12             2016-07-11 to 2016-07-31      15

请检查.. SQL Fiddle Working Demo

让我们说Customer_id = 10 July,2016和August,2016中有Invoice_date的人Amount。我需要在特定日期范围内分别对7月和8月份该特定客户的所有付款进行总结。但是我从上面的努力中得到Invoice_date所有Customer_id Date_Range Amount 10 2016-07-08 to 2016-07-08 60 10 2016-08-04 to 2016-08-04 90 11 2016-07-01 to 2016-07-05 230 12 2016-07-11 to 2016-07-31 15的总和。

期望的输出：

true

我怎么能克服这个？任何帮助将不胜感激。

Answer 1

如何按customer_id，月份和年份进行分组

select Customer_id, (mindate + ' to ' + maxdate) Date_Range, Amount
from (
       select Customer_id, 
       sum(Amount) Amount, min(Invoice_date) mindate, max(Invoice_date) maxdate  
       from #Invoice_Payment
       group by Customer_id,month(Invoice_date), year(Invoice_date)
) I
order by customer_id;

Answer 2

你差不多完成了。只需将YEAR和MONTH添加到GROUP BY。

select Customer_id, (mindate + ' to ' + maxdate) Date_Range, Amount
from (
       select Customer_id, 
       sum(Amount) Amount, min(Invoice_date) mindate, max(Invoice_date) maxdate  
       from #Invoice_Payment
group by 
  Customer_id,
  YEAR(Invoice_date),
  MONTH(Invoice_date)
) I ;

根据特定日期范围在一个月内汇总多个列

2 个答案: