我有一个DateTime维度,日期如下:
Datetime Date hour
--------------------------------------
2026-01-01 00:00:00.0000000 24
2025-12-31 23:00:00.0000000 23
2025-12-31 22:00:00.0000000 22
2025-12-31 21:00:00.0000000 21
2025-12-31 20:00:00.0000000 20
2025-12-31 19:00:00.0000000 19
2025-12-31 18:00:00.0000000 18
2025-12-31 17:00:00.0000000 17
2025-12-31 16:00:00.0000000 16
2025-12-31 15:00:00.0000000 15
2025-12-31 14:00:00.0000000 14
2025-12-31 13:00:00.0000000 13
2025-12-31 12:00:00.0000000 12
2025-12-31 11:00:00.0000000 11
2025-12-31 10:00:00.0000000 10
2025-12-31 09:00:00.0000000 9
2025-12-31 08:00:00.0000000 8
2025-12-31 07:00:00.0000000 7
2025-12-31 06:00:00.0000000 6
2025-12-31 05:00:00.0000000 5
2025-12-31 04:00:00.0000000 4
2025-12-31 03:00:00.0000000 3
2025-12-31 02:00:00.0000000 2
2025-12-31 01:00:00.0000000 1
由于系统时间,我需要我的时间从6点开始,但我如何做到这一点?我可以用硬编码的值创建一个诱惑表并加入,但是有一个更简单的方法吗?
期望的结果:
Datetime Date hour
--------------------------------------
2026-01-01 00:00:00.0000000 19
2025-12-31 23:00:00.0000000 18
2025-12-31 22:00:00.0000000 17
2025-12-31 21:00:00.0000000 16
2025-12-31 20:00:00.0000000 15
2025-12-31 19:00:00.0000000 14
2025-12-31 18:00:00.0000000 13
2025-12-31 17:00:00.0000000 12
2025-12-31 16:00:00.0000000 11
2025-12-31 15:00:00.0000000 10
2025-12-31 14:00:00.0000000 9
2025-12-31 13:00:00.0000000 8
2025-12-31 12:00:00.0000000 7
2025-12-31 11:00:00.0000000 6
2025-12-31 10:00:00.0000000 5
2025-12-31 09:00:00.0000000 4
2025-12-31 08:00:00.0000000 3
2025-12-31 07:00:00.0000000 2
2025-12-31 06:00:00.0000000 1
2025-12-31 05:00:00.0000000 24
2025-12-31 04:00:00.0000000 23
2025-12-31 03:00:00.0000000 22
2025-12-31 02:00:00.0000000 21
2025-12-31 01:00:00.0000000 20
还有任何关于为什么我不持有DateDimension和TimeDimension的问题。这不能预先满足我的需求,因为我在日期时间维度上有更多的业务规则。
发布于 2019-02-19 12:45:20
猜猜看..。
UPDATE YourTable
SET [Date hour] = IIF(DATEPART(HOUR,DATEADD(HOUR, -5, [datetime])) = 0,24,DATEPART(HOUR,DATEADD(HOUR, -5, [datetime]));
发布于 2019-02-19 12:45:16
考虑到您的[Date hour]
列已经计算完毕,您可以尝试使用模数进行更新:
UPDATE yourTable
SET [Date hour] = 1 + ([Date hour] + 18) % 24;
更好的长期解决方案可能是根据原始日期时间信息将日期小时列作为计算列。用“Larnu”来回答这个问题。
https://stackoverflow.com/questions/54766608
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