Question

SELECT
SUM(p.mc_gross) AS totalsales,
SUM(p.tax) AS totlatax, 
(SELECT SUM(totalamount) FROM table1 
    WHERE DATE_FORMAT(paydate, '%d-%m-%Y') = 
    DATE_FORMAT(p.payment_date, '%d-%m-%Y')) AS totalagentsales, 
DATE_FORMAT(p.payment_date, '%d-%m-%Y') AS filter,
(p.mc_gross - p.tax - (SELECT SUM(totalamount) FROM table1)) AS TotalRevenue,
(p.tax + (SELECT SUM(totalamount) FROM table1) ) AS TotalPayment
FROM table2 AS p GROUP BY filter LIMIT 0, 30

此查询总和不会产生正确的结果。我为TotalRevenue做了减法，为TotalPayment做了加法。这个结果不正确。

这是我的输出：

totalsales  totlatax   totalagentsales   filter       TotalRevenue   TotalPayment
38.99       3.54       NULL              11-03-2011   33.152         4.54
6           0.09       NULL              14-02-2011   3.612          1.09
2177.46     197.96     0.899             14-03-2011   1977.202       198.96
299.94      27.27      1.399             15-03-2011   270.372        28.27
19.98       1.82       NULL              21-01-2011   15.862         2.82
3           0.27       NULL              22-01-2011   0.432          1.27
14.77       1.82       NULL              28-02-2011   10.652         2.82

Answer 1

我不知道你的表格布局，表格中的数据，以及你对你所拥有的内容的了解，我只是在猜测。首先，您可能需要对访问SUM和mc_gross的其他实例重复使用tax。另外，我认为你使用子查询会搞砸你，尤其是SELECT SUM(totalamount) FROM table1的两个实例。我想你想要限制计算这些总和时使用的行，类似于你对totalagentsales的处理方式。如果将totalagentsales子句移动到FROM子句中，则可以重复使用SELECT SUM(p.mc_gross) AS totalsales, SUM(p.tax) AS totlatax, q.totalagentsales, DATE_FORMAT(p.payment_date, '%d-%m-%Y') AS filter, (SUM(p.mc_gross) - SUM(p.tax) - q.totalagentsales) AS TotalRevenue, (SUM(p.tax) + q.totalagentsales) AS TotalPayment FROM table2 AS p, (SELECT SUM(totalamount) totalagentsales FROM table1 WHERE DATE_FORMAT(paydate, '%d-%m-%Y') = DATE_FORMAT(p.payment_date, '%d-%m-%Y') ) AS q GROUP BY filter LIMIT 0, 30值，如下所示：

SELECT SUM(p.mc_gross) AS totalsales, SUM(p.tax) AS totlatax, 
       q.totalagentsales, DATE_FORMAT(p.payment_date, '%d-%m-%Y') AS filter,
       (SUM(p.mc_gross) - SUM(p.tax) - q.totalagentsales) AS TotalRevenue,
       (SUM(p.tax) + q.totalagentsales) AS TotalPayment
FROM table2 AS p
     LEFT JOIN (SELECT SUM(totalamount) totalagentsales,
                       DATE_FORMAT(paydate, '%d-%m-%Y') AS filter
                FROM table1 GROUP BY filter) AS q
               ON DATE_FORMAT(p.payment_date, '%d-%m-%Y') = q.filter
GROUP BY filter 
LIMIT 0, 30

修改

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求和表中的列不能产生正确的结果

1 个答案: