你如何测试东西是否超过 3 个月? [英] How do you test if something is older than 3 months?

问题描述

我在选择表中日期为今天之前 3 个月的行时遇到了一些麻烦.我尝试在我的 where 子句中使用 DATE(NOW() - INTERVAL 3 MONTH) ，但没有运气.如果项目超过 3 个月，我如何在 SQL Server 中进行检查?

I have been having some trouble to select the rows of my table which has a date of 3 months prior of today. I tried using DATE(NOW() - INTERVAL 3 MONTH) in my where clause, but no luck. How do I check in SQL Server if a item is older than 3 months?

  UPDATE[TCTdb].[dbo].[Stock]
     SET[Warehouse] = 'old'
   WHERE [ManufacturedDate] <= DATE(NOW() - INTERVAL 3 MONTH)

推荐答案

您的语法似乎有误.

应该是

UPDATE[TCTdb].[dbo].[Stock]
    SET[Warehouse] = 'old'
WHERE [ManufacturedDate] <= DATEADD(mm, -3, GETDATE())

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