Question

在MSSQL中使用两个表：

一张表，[CUSTOMER]，包含有关捐助者的信息。 - 相关列：[CustID]，[Name] 一张桌子，[捐赠]，包含每次捐赠的记录。 - 相关列：[CustID]，[Amount]，[Date] 这些表共享一个密钥[CustID]。

我想根据每个[CustID]

汇总[Amounts]

SELECT DONATION.CUSTID
,PEOPLE.NAME
,SUM (DONATION.AMOUNT) as TOTAL_DONATION
FROM [dbo].[DONATION] INNER JOIN [dbo].[PEOPLE] ON DONATION.CUSTID = PEOPLE.CUSTID
GROUP BY
DONATION.CUSTID
,PEOPLE.NAME
HAVING SUM (DONATION.AMOUNT) > 100

此查询正常，即使添加了HAVING子句也是如此。

当我想限制捐款的日期汇总时（加入SELECT，GROUP BY和HAVING条款）但是......

SELECT DONATION.CUSTID
,PEOPLE.NAME,DONATION.DATE
,SUM (DONATION.AMOUNT) as TOTAL_DONATION
    FROM [dbo].[DONATION] INNER JOIN [dbo].[PEOPLE] ON DONATION.CUSTID = PEOPLE.CUSTID
    GROUP BY
DONATION.CUSTID
,PEOPLE.NAME
,DONATION.DATE
HAVING SUM (DONATION.AMOUNT) > 100
and DONATION.DATE > '1-1-2010'

查询不再返回每个人捐款的总和，但会返回符合HAVING标准的每个人的个人捐款。

如何实施此日期限制？是我加入或总结或......？感谢。

Answer 1

将其移至 WHERE 子句

SELECT DONATION.CUSTID
      ,PEOPLE.NAME
      ,SUM (DONATION.AMOUNT) as TOTAL_DONATION
FROM [dbo].[DONATION]
INNER JOIN [dbo].[PEOPLE] ON DONATION.CUSTID = PEOPLE.CUSTID
WHERE DONATION.DATE > '1-1-2010'
GROUP BY
       DONATION.CUSTID
      ,PEOPLE.NAME
HAVING SUM (DONATION.AMOUNT) > 100

这意味着什么：

- given the people who donated
- look only at data where donation date is in 2010 or later
- and within that data, show the people who donated a total of more than 100

Answer 2

修改您的第一个查询，如：

,SUM (CASE WHEN DONATION.DATE > '1-1-2010' THEN DONATION.AMOUNT END) 
     as TOTAL_DONATION

Answer 3

除非您希望每个客户每个日期有一行，否则您无法按日期分组。如何从捐赠表中查找并查找客户名称？

选择捐赠者=（从[人]中选择名称，其中[人物] .custid = [捐赠] .custid），客户ID，SUM（量）来自[捐款] 哪里[捐款]。日期'1/1/2011'和'1/15/2011' custid小组 SUM（量）> 100

SQL - 按日期限制联接记录

3 个答案: