Question

我有一个公式替换日期时间字段中的一年，然后还将日期时间字段转换为日期：

cast(DATEADD(year,DATEDIFF(year,LAW_TAEEMASTER.MASTR_ENTRY,GETDATE()),LAW_TAEEMASTER.MASTR_ENTRY) as date) as [New Date]

返回如下结果：2017-08-07 from：2008-08-07。现在，我需要从中减去6个月，所以新的结果将是2017-02-07。我做了以下更改，导致错误

关键字'as'
附近的语法不正确

cast(DATEADD(Month,-6,cast(DATEADD(year,DATEDIFF(year,LAW_TAEEMASTER.MASTR_ENTRY,GETDATE()),LAW_TAEEMASTER.MASTR_ENTRY) as date) as [6 mo Anniv]

Answer 1

您忘记将括号括起来关闭新的CAST和DATEADD函数，以便将原始结果减去6个月。此外，您的新CAST功能应包括AS DATE。

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从具有公式的日期开始减去6个月

1 个答案: