轉帖：SQL查詢按月/年匯總金額

Question

在這里重新發布鏈接

我的查詢是

SELECT MONTH(now()) as m, SUM(total) as grandtotal
FROM tb
group BY YEAR(now()), MONTH(now())

我正在尋找如何從今年和月份獲得總計，但我的總計也是去年的總和。 例如，我有 2018 年 8 月 = 20 年和 2017 年 8 月 = 40 年的數據。 所以我的總數將是 60 而不是 20。

示例 sqlfiddle

Answer 1

僅在 group by 中使用月份 - 它將為您提供月份級別的總和，但如果您將年份也按級別分組，那么它將顯示年份和月份的總和

SELECT MONTH(now()) as m, SUM(total) as grandtotal
FROM tb
group BY MONTH(now())

Answer 2

根據上次的回答

select year(date) as y, month(date) as m, sum(paid) as p
from table
where year(now()) = year(date) and month(now()) = month(date)
group by year(date), month(date)

請注意，如果您的表定義不同，則列名也可能不同。

Answer 3

您應該按字段的值分組，而不是按常量分組。

SELECT MONTH(YourDateField) as m, SUM(total) as grandtotal
FROM tb
WHERE YEAR(YourDateField) = YEAR(now())
GROUP BY YEAR(YourDateField), MONTH(YourDateField)