Question

我尝试过很多我在这里找到的脚本，但没有一个我需要的。

我有3个表：clients，invoiced和payments。

我想：

将日期范围内每个客户的所有发票汇总
汇总在日期范围内的客户的所有付款，然后从发票中扣除付款以显示未付金额。

我需要添加日期范围并获得总数（如果不是零）。

到目前为止，我的查询是

select id,
   (select sum(Total) from invoiced  where invoiced.ClientId = clients.Id) AS Invoiced,
   (select sum(Amount) from payments  where payments.ClientId = clients.Id) AS Paid
FROM clients

Answer 1

问题是发票和付款之间不存在关系。这使它有点“肮脏”＃34; ;）

试试这个：

select p.id, sum(i.total), sum(p.amount), sum(i.total) - sum(p.amount) as outstanding
from 
(
select c.id, coalesce(pay.amount,0) as amount
from 
  (select ClientId, Sum(Amount) amount from payments group by ClientId) as pay 
  right join clients c on c.id = pay.ClientId
) p
left join
(
select c.id, inv.total
from 
  (select ClientId, Sum(Total) total from invoiced group by ClientId) as inv
  left join clients c on c.id = inv.ClientId
) i
on p.id = i.id
group by id
having sum(i.total) <> sum(p.amount)
;

更新了Sqlfiddle with results here

获得已开具发票的付款总额以及每位客户的欠款

1 个答案: