我目前有一个提供下面结果集的查询,我现在需要添加到此查询中以提供所有销售底部的总计。我不知道该怎么做。
当前查询:
SELECT
product,
COUNT(OrderNumber) AS CountOf
FROM
orders
WHERE
STATUS = 'booking' AND
Date(OrderDate) <= CURDATE() AND
Date(OrderDate) > DATE_SUB(CURDATE(),INTERVAL 30 DAY)
GROUP BY
product
ORDER BY CountOf DESC
当前结果集:
product| count
-----------------------
pd1 | 3
pd4 | 1
pd2 | 1
期望的结果集=
product| count
-----------------------
pd1 | 3
pd4 | 1
pd2 | 1
Total | 5
答案 0 :(得分:1)
也许你可以添加一个UNION,以及一个总额为SELECT的。像这样:
SELECT
product,
COUNT(OrderNumber) AS CountOf
FROM
orders
WHERE
STATUS = 'booking' AND
Date(OrderDate) <= CURDATE() AND
Date(OrderDate) > DATE_SUB(CURDATE(),INTERVAL 30 DAY)
GROUP BY
product
UNION
SELECT 'Total', count(OrderNumber) AS CountOf
FROM orders
WHERE
STATUS = 'booking' AND
Date(OrderDate) <= CURDATE() AND
Date(OrderDate) > DATE_SUB(CURDATE(),INTERVAL 30 DAY)
ORDER BY CountOf DESC;
答案 1 :(得分:0)
尝试在同一个表上使用内部联接,由于每一侧的列数不正确,因此联合不起作用。
初始选择有2个设置列,其中第二个选择(在联合之后)没有。