mysql 按日期选择总和组 [英] mysql select sum group by date

问题描述

快速提问，我有下表

+-------------+---------------------+
| total       | o_date              |
+-------------+---------------------+
|          35 | 01-11-2009 19:32:44 | 
|        41.5 | 01-12-2009 22:33:49 | 
|        61.5 | 01-23-2009 22:08:24 | 
|          66 | 02-01-2009 22:33:57 | 
|       22.22 | 02-01-2009 22:37:34 | 
|       29.84 | 04-20-2009 15:23:49 | 
+-------------+---------------------+

我想将每个月的总数相加并按月对总数进行分组.所以例如Jan-> 138 Feb-> 88.2 Apr-> 29.84

I would like to add up the total for each month and group the total by month. So for instance Jan-> 138 Feb-> 88.2 Apr-> 29.84

关于它的任何线索.谢谢

Any clues about it. Thanks

推荐答案

此解决方案将为您提供月份名称作为结果集的一列，然后是所需的总数.

This solution will give you the month name as a column of your resultset, followed by the total as required.

SELECT MONTHNAME(o_date), SUM(total) 
FROM theTable
GROUP BY YEAR(o_date), MONTH(o_date)

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