我的表格有两栏GMT时间的二栏,按以下几分钟予以抵销:
SELECT TOP 1 StartTime, OffSet FROM MyTable;
1247242537 -420 -- as example
我可以发挥什么职能,将它改为在 yyyy-MM-dh:mms as TimeStamp? 我使用的是2005年SQ服务器。
如果您的Epoch日期是1970年1月1日(通常为GMT第二号,但你需要确认)就应该这样做。
select dateAdd(ss,1247242537+(-420*60), 1/1/1970 )
== > 2009-07-10 09:15:37.000
供您使用
select DATEADD(ss,StartTime+(Offset*60), 1/1/1970 ) as TheTime FROM myTable
确保你发现一些测试案例,以确保Epoch日期符合预期。 基本上,GMT时间是过去1/1/1970年1月1日(12:00am)的秒数,因此,日期是Add处理这一部分。 相抵数是几分钟数,与格林尼治平时数不一,因此乘以60秒钟并相应调整其价值。
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