mysql - MYSQL 子查询还是左连接？

Question

我正在制作一个小发票申请，但我一直在查询以获取我的发票的总未结金额。

一点解释：

我在数据库中有 2 个表，invoices它们payments与 column 相关invoice_id。一张发票可以进行多次付款。

我想要得到的是所有发票的总未结金额。

这是我尝试过的，但它不起作用。

total_paid 金额不正确，它是最后一张发票的总和，而不是所有发票的总和。

SELECT
  COUNT( * ) AS count,
  SUM( invoice_amount_total ) AS total,
  (SELECT
     SUM( amount ) AS total
   FROM `invoice_payments`
   WHERE `invoice_id` = s.id) AS total_paid
FROM sales_invoices AS s
WHERE s.administration_id = 3
    AND (`invoice_amount_total` <> (SELECT
                      SUM( `amount` ) AS sum
                    FROM `invoice_payments`
                    WHERE `invoice_id` = s.id)
      OR (SELECT
        SUM( amount ) AS sum
          FROM `invoice_payments`
          WHERE `invoice_id` = s.id)IS NULL)

有任何想法吗？