本文介绍了mysql 按日期选择总和组的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
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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