Mysql 基于时差添加行的sql查询

我有一个表，有以下列：s.no，house_no，energy，time 我想找出每一间房子每一小时的总能量。 表:

我尝试的是上午10点到11点。但是这个查询也会对时间值大于上午11点的行的能量求和

SELECT house_no, sum( energy ) AS sum, time
FROM main
GROUP BY house_no
HAVING (
TIMESTAMPDIFF(
MINUTE , time, '2014-10-20 11:00:00' ) >0)

结果是：

+----------+------+---------------------+
| house_no | sum  | time                |
+----------+------+---------------------+
|        1 |   18 | 2014-10-20 10:00:00 |
|        2 |   27 | 2014-10-20 10:00:00 |
+----------+------+---------------------+

但实际答案应该是：

+----------+------+---------------------+
| house_no | sum  | time                |
+----------+------+---------------------+
|        1 |   15 | 2014-10-20 10:00:00 |
|        2 |   7 | 2014-10-20 10:00:00 |
+----------+------+---------------------+

---

您还必须根据小时对时间进行分组

SELECT house_no, sum( energy ) AS sum, time
FROM main
GROUP BY house_no,DATE_FORMAT(time,'%d %b %Y %H')
HAVING (
TIMESTAMPDIFF(
MINUTE , time, '2014-10-20 11:00:00' ) >0)

---

是的，它是有效的。使用where子句而不是HAVE子句本身解决了这个问题。

SELECT house_no, sum( energy ) AS sum, time
FROM main
GROUP BY house_no,DATE_FORMAT(time,'%d %b %Y %H')
HAVING (
TIMESTAMPDIFF(
MINUTE , time, '2014-10-20 11:00:00' ) >0)