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datediff只表示间隔数,datediff只表示间隔数

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本周:

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

最近三天:

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

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()))

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

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 (DATEPART(yy, addtime) = DATEPART(yy,
GETDATE())) 
AND ((DATEPART(mm, addtime) = DATEPART(mm, GETDATE())) OR
(31-DATEPART(DD,addtime)+DATEPART(DD, GETDATE()))<=31)

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

 

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

一天 select \ from T_news where
datediff(day,addtime,getdate())=0*

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

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