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按日期和 SUM 值分组[重复]. Django

按日期和 SUM 值分组[重复]. Django

#日期 #通过...分组 #和 


+---------------------+-----------+
| datetime           | data    |
+---------------------+-----------+
| 2013-07-26 13:00:00 |       489 |
| 2013-07-26 14:00:00 |      2923 |
| 2013-07-26 15:00:00 |       984 |
| 2013-07-26 16:00:00 |      2795 |
| 2013-07-26 17:00:00 |      1308 |
| 2013-07-26 18:00:00 |      1365 |
| 2013-07-26 19:00:00 |      1331 |
| 2013-07-26 20:00:00 |       914 |
| 2013-07-26 21:00:00 |       919 |
| 2013-07-26 22:00:00 |       722 |
| 2013-07-26 23:00:00 |       731 |
+---------------------+-----------+
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