使行不同且总重复行值

Question

我正在尝试填写与每张发票上有唯一行的客户相关的所有发票 - tval 列应添加（总和）发票编号重复的总和，总tval总和应为根据指示的标签（列）显示别名。只有两种类型的标签“crn”＆amp; “acr”如果两者都没有那么值可以是Null

我尝试了很多方法来实现这一点，但我失败了，这是我能得到的最接近的

SELECT 
    i.si_num AS `id`,
    DATE_FORMAT(i.si_date, '%d-%b-%Y') AS `date`,
    i.si_tr AS `tr`,
    d.dl_name AS `customer`,
    i.si_net_value AS `net`,
    DATEDIFF(CURDATE(), si_date) AS Days,
    t.value AS tval,
    t.label AS label
FROM
    invoices AS i
LEFT JOIN
    dealer AS d ON i.si_tr = d.dl_id
LEFT JOIN
    transactions AS t ON i.si_num = t.invoice
WHERE
    i.si_tr = 'TR580494'
ORDER BY `si_num` DESC;

这是我得到的结果

请帮助。

Answer 1

使用SQL语句，尝试在tval上使用DISTINCT示例：

SELECT DISTINCT tval

Answer 2

SELECT 
i.si_num AS `id`, DATE_FORMAT(i.si_date, '%d-%b-%Y') AS `date`,
i.si_tr AS `tr`, d.dl_name AS `customer`, i.si_net_value AS `net`,
DATEDIFF(CURDATE(), si_date) AS Days, SUM(t.value) AS tval,
GROUP_CONCAT(t.label) AS label
FROM invoices AS i
INNER JOIN dealer AS d ON i.si_tr = d.dl_id
INNER JOIN transactions AS t ON i.si_num = t.invoice
WHERE i.si_tr = 'TR580494'
GROUP BY id, date, tr, customer, net, Days
ORDER BY `si_num` DESC;