Question

我有以下查询，我正在尝试显示11月28日和29日之间的所有值以及那些日期之间具有TimeIn值但TimeOut为NULL值的值。

    SELECT  
        TimeIn,
        TimeOut
    FROM
        Movement VM
    WHERE 
        Area  = 1 AND
        ((
        VM.TimeIn >= '28 Nov 2016' AND 
        VM.TimeOut < DATEADD (d,1,'29 Nov 2016' ) OR VM.TimeOut IS NULL) )
        order by timein

这些是我得到的结果：

**TimeIn                  TimeOut**

2016-11-10 01:16:04.807 NULL

2016-11-10 01:18:48.900 NULL

2016-11-10 01:28:10.350 NULL

2016-11-10 01:31:28.693 NULL

2016-11-13 16:22:45.273 NULL

2016-11-14 22:18:06.210 NULL

2016-11-18 23:05:15.753 NULL

2016-11-19 00:22:39.810 NULL

2016-11-19 00:36:44.570 NULL

2016-11-19 00:40:42.507 NULL

2016-11-19 00:42:14.463 NULL

2016-11-19 00:45:05.860 NULL

2016-11-20 22:35:10.830 NULL

2016-11-20 22:41:27.383 NULL

2016-11-20 23:22:57.177 NULL

2016-11-21 02:17:36.053 NULL

2016-11-28 02:13:05.060 2016-11-28 02:13:05.060

2016-11-29 00:01:14.910 2016-11-29 00:01:14.910

2016-11-29 00:04:29.827 2016-11-29 00:04:29.827

2016-11-29 00:07:14.840 2016-11-29 00:07:14.840

2016-11-29 00:09:52.807 2016-11-29 00:09:52.807

2016-11-29 00:13:10.217 2016-11-29 00:13:10.217

2016-11-29 00:15:33.587 2016-11-29 00:15:33.587

2016-11-29 00:25:12.573 2016-11-29 00:25:12.573

2016-11-29 02:47:41.570 NULL

2016-11-29 12:31:50.503 2016-11-29 12:31:50.503

2016-11-29 12:39:01.483 2016-11-29 12:39:01.483

2016-11-29 13:03:43.477 2016-11-29 13:04:43.663

2016-11-30 01:43:05.487 NULL

2016-11-30 01:44:05.480 NULL

2016-11-30 01:51:22.277 NULL

2016-11-30 01:55:24.000 NULL

2016-11-30 01:57:44.620 NULL

2016-11-30 02:00:04.150 NULL

2016-11-30 02:16:05.823 NULL

2016-11-30 15:57:35.517 NULL

2016-12-02 00:28:22.487 NULL

2016-12-02 01:07:07.303 NULL

2016-12-09 02:18:40.897 NULL

but I only want to return the below. How can I get my syntax in the correct method?



 **TimeIn                  TimeOut**

    2016-11-28 02:13:05.060 2016-11-28 02:13:05.060

    2016-11-29 00:01:14.910 2016-11-29 00:01:14.910

    2016-11-29 00:04:29.827 2016-11-29 00:04:29.827

    2016-11-29 00:07:14.840 2016-11-29 00:07:14.840

    2016-11-29 00:09:52.807 2016-11-29 00:09:52.807

    2016-11-29 00:13:10.217 2016-11-29 00:13:10.217

    2016-11-29 00:15:33.587 2016-11-29 00:15:33.587

    2016-11-29 00:25:12.573 2016-11-29 00:25:12.573

    2016-11-29 02:47:41.570 NULL

    2016-11-29 12:31:50.503 2016-11-29 12:31:50.503

    2016-11-29 12:39:01.483 2016-11-29 12:39:01.483

    2016-11-29 13:03:43.477 2016-11-29 13:04:43.663

Answer 1

您获得顶部而不是底部的原因是由于您的OR语法。您的OR需要与ValidTo限制

位于同一个括号中

即。 (validTo > '29 Nov 2016' OR null)而非(validTo > '29 Nov 2016') OR NULL。让NULL外部返回该列中NULL的每一行。

所以你的语法需要（编辑）：

    SELECT TimeIn
    ,[TimeOut]
FROM Movement VM
WHERE Area = 1
    AND CAST(VM.TimeIn AS DATE) BETWEEN '28 Nov 2016' AND '29 Nov 2016'
            AND (
                CAST(VM.TimeOut AS DATE) <= '29 Nov 2016'
                OR VM.TimeOut IS NULL
                )
ORDER BY timein

处理日期范围内的NULL日期

1 个答案: