如何編寫查詢來獲取最後一週的記錄

Question

我需要獲取從sqlserver2008r2記錄，我對獲取記錄本周查詢：

select EmpCode,EventDate1 as EventDate,InTime, 
case when OutTime is null then 'N/A' else Outtime end as OutTime from  
TMS_HOURCALC WHERE intime1 
    BETWEEN dateadd(dd,(datediff(DD,-53684,getdate())/7)*7,-53684) 
    AND dateadd(dd,((datediff(dd,-53684,getdate())/7)*7)+7,-53684) 
    and empcode = @empcode 
GROUP BY EmpCode, InTime,OutTime, EventDate1,intime1  
order by intime1; 

請人幫我只能從最後取了上週的記錄週日到週六。

Answer 1

列上製作一個計算指的是在where子句中，會帶來可怕的表現。這是一個更好的方法：

select EmpCode,EventDate1 as EventDate,InTime, 
case when OutTime is null then 'N/A' else Outtime end as OutTime from  
TMS_HOURCALC 
WHERE intime1 >= dateadd(dd,(datediff(DD,-1,getdate())/7)*7-7,-1) 
and intime1 < dateadd(dd,((datediff(dd,-1,getdate())/7)*7),-1) 
and empcode = @empcode 
GROUP BY EmpCode, InTime,OutTime, EventDate1,intime1  
order by intime1; 

Answer 2

確保在你的數據庫@@DateFirst設置爲7（星期日默認）和使用DATEPART()

嘗試使用：

where 
DATEPART(ww, intime1) = DATEPART(ww, GetDate()) 
and 
YEAR(intime1) = YEAR(GetDate())