SQL - 修改查詢，以便從時間的間隔得到的值，而不是一個固定的時間

Question

我有一個查詢它返回一個確切的時間跨度：

SELECT ScanDate FROM tTimes WHERE personId = 5 

的值，例如可以：

2016-08-10 16:26:42.000 

使用下面的查詢：

SELECT executedTime FROM tTimetable as tc 
WHERE tc.lastExecutedTime IN (SELECT ScanDate FROM tTimes WHERE personId =5) 

我會得到：

SELECT executedTime FROM tTimetable as tc 
    WHERE tc.lastExecutedTime IN (2016-08-10 16:26:42.000) 

不過，我想從

SELECT executedTime FROM tTimetable as tc 
     WHERE tc.lastExecutedTime IN (between 2016-08-10 16:16:42.000 and 2016-08-10 16:36:42.000)So everything which is between the `2016-08-10 16:26:42.000-10sec` and `2016-08-10 16:26:42.000+10secs` 

獲取值我怎樣才能archieve這樣的結果？

Answer 1

如果我明白你的問題

SELECT executedTime 
    FROM tTimetable as tc 
    Join (
     Select DateR1 = DateAdd(SECOND,-10,ScanDate) 
       ,DateR2 = DateAdd(SECOND,10,ScanDate) 
     FROM tTimes WHERE personId = 5 
     ) B 
    on tc.lastExecutedTime between DateR1 and DateR2 

Answer 2

我會用exists接近這樣的：

SELECT executedTime 
FROM tTimetable as tc 
WHERE EXISTS (SELECT 1 
       FROM tTimes 
       WHERE personId = 5 AND 
        tc.lastExecutedTime BETWEEN DATEADD(second, -10, ScanDate) AND DATEADD(second, 10, ScanDate) 
      );