MS SQL查詢不工作，當我把where子句

Question

我正在寫一個簡單的查詢來獲取特定日期的金額。查詢運行良好，沒有where子句。但是在放置where子句之後，它不會提取任何記錄。請幫助。

我的查詢是

Select 
OSTotal as RevenueDaily, 
systemlastedittime as Lastedittime 
from AccTransactionHeader where systemlastedittime = '09/02/2015' 

同樣的systemlastedittime數據類型爲DT，我不知道關於它的格式，不管是在ddmmyyyy或mmddyyyy格式。

Answer 1

格式應該是yyyy-MM-dd

Select OSTotal as RevenueDaily, systemlastedittime as 
Lastedittime from AccTransactionHeader where 
CAST(systemlastedittime as DATE) ='2015-02-09' 

Answer 2

也可能你的SELECT語句之前嘗試

set dateformat ymd 

。從MSDN https://msdn.microsoft.com/en-us/library/ms189491.aspx

Answer 3

下面採取 是查詢：

Select OSTotal as RevenueDaily, systemlastedittime as Lastedittime 
from AccTransactionHeader 
where CAST(systemlastedittime AS DATE)= '2/9/2015'