当天:

一天 威澳门尼斯人36366com,select \ from T_news where
datediff(day,addtime,getdate())=0*

select * from T_news where datediff(day,addtime,getdate())=0

三天 select \ from T_news where
datediff(day,addtime,getdate())<= 2 and
datediff(day,addtime,getdate())>= 0*

这两日四日:

一周 select \ from T_news WHERE (DATEPART(wk, addtime) =
DATEPART(wk, GETDATE())) AND (DATEPART(yy, addtime) = DATEPART(yy,
GETDATE()))*

select * from T_news where datediff(day,addtime,getdate())<= 2 and
datediff(day,addtime,getdate())>= 0

在意:此时不能够用 datediff 差值为7,因为,datediff只表示间隔数

本周:

一月    select * from T_news WHERE (DATEPART(yy, addtime) =
DATEPART(yy, GETDATE())) AND (DATEPART(mm, addtime) = DATEPART(mm,
GETDATE()))

select * from T_news WHERE (DATEPART(wk, addtime) = DATEPART(wk,
GETDATE())) AND (DATEPART(yy, addtime) = DATEPART(yy, GETDATE()))

一季度 select * from T_news where DATEPART(qq, addtime) =
DATEPART(qq, GETDATE()) and DATEPART(yy, addtime) = DATEPART(yy,
GETDATE())

瞩目:此时不可能用 datediff 差值为7,因为,datediff只表示间隔数

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