今天早上我真的受阻了......
如何检查值是否连续重复连续超过5次并标记它们?
我的意思是,如果它们是否定的则很容易标记它们,但是如何检查它们是否出现超过5次?
更新:对不起,我不清楚......
DATA:
+-------+-----------------+ | time | V_preisereadDOT | +-------+-----------------+ | 00:00 | 5 | | 01:00 | 1 | | 02:00 | 2 | | 03:00 | -3 | | 04:00 | -8 | | 05:00 | -9 | | 06:00 | 5 | | 07:00 | 4 | | 08:00 | -9 | | 09:00 | -9 | | 10:00 | -5 | | 11:00 | -5 | | 12:00 | -4 | | 13:00 | -4 | | 14:00 | 6 | | 15:00 | 5 | | 16:00 | 2 | | 17:00 | 4 | | 18:00 | -4 | | 19:00 | -8 | | 20:00 | -9 | | 21:00 | -7 | | 22:00 | 2 | | 23:00 | 8 | +-------+-----------------+
结果得到:
+-------+-----------------+----------+ | time | V_preisereadDOT | 6negativ | +-------+-----------------+----------+ | 00:00 | 5 | 0 | | 01:00 | 1 | 0 | | 02:00 | 2 | 0 | | 03:00 | -3 | 0 | | 04:00 | -8 | 0 | | 05:00 | -9 | 0 | | 06:00 | 5 | 0 | | 07:00 | 4 | 0 | | 08:00 | -9 | 1 | | 09:00 | -9 | 1 | | 10:00 | -5 | 1 | | 11:00 | -5 | 1 | | 12:00 | -4 | 1 | | 13:00 | -4 | 1 | | 14:00 | 6 | 0 | | 15:00 | 5 | 0 | | 16:00 | 2 | 0 | | 17:00 | 4 | 0 | | 18:00 | -4 | 0 | | 19:00 | -8 | 0 | | 20:00 | -9 | 0 | | 21:00 | -7 | 0 | | 22:00 | 2 | 0 | | 23:00 | 8 | 0 | +-------+-----------------+----------+
提前谢谢!
答案 0 :(得分:1)
如下:
SELECT
reading,
COUNT(reading)
FROM data
WHERE negative = 1
GROUP BY reading
HAVING COUNT(reading) > 5