Sql 基于其他联接表列计算字段的总和

我正在处理一个SQL查询，如下所示：

Select 
    a.field1,
    b.field2,
    c.field3,
    c.field4,
    b.filed5,
    a.field6,
    COALESCE(SUM(d.paid_amt) OVER (PARTITION BY a.some_column), 0)  as amount_paid 
from 
    a 
inner join 
    b on a.field1 = b.field1 
right join 
    c on b.field2 = c.field3 
left join 
    d on d.filed3 = a.field1 and d.field8 = a.field3
where 
    some conditions;

field1 | field2 | field3 | field4 | field5 | field6 | amount_paid
-------+--------+--------+--------+--------+--------+-------------
name   | value1 | other1 | 1      | diff   |   new  | 100
name1  | value2 | other2 | 1      | diff1  |   new1 | 100
name2  | value3 | other3 | 2      | diff2  |   new2 | 100

上面的输出如下所示：

Select 
    a.field1,
    b.field2,
    c.field3,
    c.field4,
    b.filed5,
    a.field6,
    COALESCE(SUM(d.paid_amt) OVER (PARTITION BY a.some_column), 0)  as amount_paid 
from 
    a 
inner join 
    b on a.field1 = b.field1 
right join 
    c on b.field2 = c.field3 
left join 
    d on d.filed3 = a.field1 and d.field8 = a.field3
where 
    some conditions;

field1 | field2 | field3 | field4 | field5 | field6 | amount_paid
-------+--------+--------+--------+--------+--------+-------------
name   | value1 | other1 | 1      | diff   |   new  | 100
name1  | value2 | other2 | 1      | diff1  |   new1 | 100
name2  | value3 | other3 | 2      | diff2  |   new2 | 100

我需要在结果中添加一个新列，根据

字段4

值（如果它们相同）对支付的

金额

求和

上面的查询返回如下所示：

field1 | field2 | field3 | field4 | field5 | field6 | amount_paid
-------+--------+--------+--------+--------+--------+-------------
name   | value1 | other1 | 1      | diff   |   new  | 200
some   | value3 | other3 | 2      | diff2  |   new2 | 200

field1 | field2 | field3 | field4 | field5 | field6 | amount_paid
-------+--------+--------+--------+--------+--------+-------------
name   | value1 | other1 | 1      | diff   |   new  | 200
some   | value3 | other3 | 2      | diff2  |   new2 | 100

但预期结果如下：

field1 | field2 | field3 | field4 | field5 | field6 | amount_paid
-------+--------+--------+--------+--------+--------+-------------
name   | value1 | other1 | 1      | diff   |   new  | 200
some   | value3 | other3 | 2      | diff2  |   new2 | 200

field1 | field2 | field3 | field4 | field5 | field6 | amount_paid
-------+--------+--------+--------+--------+--------+-------------
name   | value1 | other1 | 1      | diff   |   new  | 200
some   | value3 | other3 | 2      | diff2  |   new2 | 100

任何建议都会对您有所帮助。

您似乎只是想：

Select . . .
       COALESCE(SUM(d.paid_amt) OVER (PARTITION BY c.field04), 0)  as amount_paid 

---

你的帖子令人困惑。您提到了一个

字段7

，结果中没有该字段。然后显示两个结果，但只有一个查询。一般来说，如果一个问题只显示了一个错误的查询和错误的输出，那么理解它并没有什么帮助。请编辑您的问题，并将表格的

CREATE TABLE

语句以及表格样本数据的

INSERT-INTO

语句以及该样本数据的预期结果包括在内。@stickybit抱歉，我已更新了问题。field7指的是金额，实际上我刚刚看到了这一点，我已经从不同的线程应用了相同的内容：）感谢您的回复：）