如何在MS Access 2007中查詢sql使用DateTime查找Min＆Max？

我在MS Access 2007.中查詢SQL。我想用datetime查找混合和最大值函數。如何在MS Access 2007中查詢sql使用DateTime查找Min＆Max？

此代碼：

SELECT inf.SSN AS EmpNo, ck.CHECKTIME AS CHKDATE,Min(ck.CHECKTIME) AS TIMEIN, Max(ck.CHECKTIME) AS TIMEOUT 
FROM CHECKINOUT ck INNER JOIN USERINFO inf ON ck.Badgenumber = inf.Badgenumber 
WHERE (((ck.CHECKTIME)>=#20/03/2013#) 
Group By inf.SSN, ck.CHECKTIME 
ORDER BY inf.SSN, ck.CHECKTIME

結果：

EmpNo |  CHKDATE | TIMEIN    | TIMEOUT 
1290005 | 20/3/2556 7:24:52 | 20/3/2556 7:24:52 | 20/3/2556 7:24:52 
1290005 | 20/3/2556 19:07:54 | 20/3/2556 19:07:54 | 20/3/2556 19:07:54 
1290005 | 21/3/2556 7:14:29 | 21/3/2556 7:14:29 | 21/3/2556 7:14:29 
1320004 | 20/3/2556 7:28:57 | 20/3/2556 7:28:57 | 20/3/2556 7:28:57 
1320004 | 20/3/2556 17:05:23 | 20/3/2556 17:05:23 | 20/3/2556 17:05:23 
1320004 | 21/3/2556 7:15:30 | 21/3/2556 7:15:30 | 21/3/2556 7:15:30

但我想結果：

EmpNo |  CHKDATE | TIMEIN    | TIMEOUT 
1290005 | 20/3/2556 00:00:00 | 20/3/2556 7:24:52 | 20/3/2556 19:07:54 
1290005 | 21/3/2556 00:00:00 | 21/3/2556 7:14:29 | 21/3/2556 7:14:29 
1320004 | 20/3/2556 00:00:00 | 20/3/2556 7:28:57 | 20/3/2556 17:05:23 
1320004 | 21/3/2556 00:00:00 | 21/3/2556 7:15:30 | 21/3/2556 7:15:30

如何查詢這個水庫ULT在Access 2007中。謝謝你的時間。 ;）

來源

2013-04-23 nettoon493

訪問SQL支持DateValue()函數返回一個日期/時間值的日期部分。（實際上它會在那天給你午夜。）我認爲它應該對你想要的有用。

SELECT 
    inf.SSN AS EmpNo, 
    DateValue(ck.CHECKTIME) AS CHKDATE, 
    Min(ck.CHECKTIME) AS TIMEIN, 
    Max(ck.CHECKTIME) AS TIMEOUT 
FROM 
    CHECKINOUT ck 
    INNER JOIN USERINFO inf 
    ON ck.Badgenumber = inf.Badgenumber 
WHERE ck.CHECKTIME>=#2013/03/20# 
GROUP BY inf.SSN, DateValue(ck.CHECKTIME) 
ORDER BY 1, 2;

來源

2013-04-23 15:16:50 HansUp

感謝提前。是工作。：d – nettoon493 2013-04-24 02:02:19

我想你想通過EMPNO和ChkDate

組

來源

2013-04-23 14:49:26

我嘗試通過inf.SSN，ck.CHECKTIME分組，但它不起作用。 – nettoon493 2013-04-23 14:59:16

如何在MS Access 2007中查詢sql使用DateTime查找Min＆Max？

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