Question

我正在努力解决这个问题！我的数据如下表所示，但会有多个用户。请注意，它不仅仅是一个开始/结束时间，介于两者之间。

+-------------------------+--------+---------------------------+
| Date                    | Name 2 | Access                    |
+-------------------------+--------+---------------------------+
| 2014-09-29 14:50:03.000 | User1  | Ground Floor Door 1 (In)  |
+-------------------------+--------+---------------------------+
| 2014-09-30 08:42:33.000 | User1  | Ground Floor Door 2 (In)  |
+-------------------------+--------+---------------------------+
| 2014-09-30 08:42:58.000 | User1  | 1st Floor Door 1 (In)     |
+-------------------------+--------+---------------------------+
| 2014-09-30 12:31:54.000 | User1  | Ground Floor Door 1 (Out) |
+-------------------------+--------+---------------------------+
| 2014-09-30 13:05:43.000 | User1  | Ground Floor Door 1 (In)  |
+-------------------------+--------+---------------------------+
| 2014-09-30 13:11:32.000 | User1  | Ground Floor Door 3 (Out) |
+-------------------------+--------+---------------------------+
| 2014-09-30 13:55:28.000 | User1  | Ground Floor Door 1 (In)  |
+-------------------------+--------+---------------------------+
| 2014-09-30 13:55:36.000 | User1  | Ground Floor Door 2 (In)  |
+-------------------------+--------+---------------------------+
| 2014-09-01 18:31:21.000 | User1  | Ground Floor Door 4 (Out) |
+-------------------------+--------+---------------------------+
| 2014-10-01 08:31:21.000 | User1  | Ground Floor Door 1 (In)  |
+-------------------------+--------+---------------------------+
| 2014-10-01 08:31:41.000 | User1  | Ground Floor Door 2 (In)  |
+-------------------------+--------+---------------------------+
| 2014-10-01 17:31:49.000 | User1  | Ground Floor Door 4 (Out) |
+-------------------------+--------+---------------------------+
| 2014-10-02 08:31:51.000 | User1  | Ground Floor Door 1 (In)  |
+-------------------------+--------+---------------------------+
| 2014-10-02 18:41:49.000 | User1  | Ground Floor Door 3 (Out) |
+-------------------------+--------+---------------------------+

我需要获取一系列日期之间每天的最小值和最大值。如果我可以计算出午餐时间有多长（第一次和最后一次滑动之间的差异，在下午12点到下午2点之间），这也很好但不重要，直到我能让第一部分工作。

到目前为止，我已尝试过各种版本的查询，但没有任何乐趣。有人可以帮我吗？获取特定日期的最小值和最大值没有问题，只有当涉及的范围不起作用时才会有效。

select min(Date) as EntryTime, max(Date) as ExitTime
from table
where [Name 2] like '%User1%' and EventTime between '2014-09-30 12:00:00' and '2014-10-05 12:00:00'
group by cast(Date as datetime)

这不会提供所需的结果集。我希望我的查询为我的表返回这样的内容：

+-------------------------+-------------------------+----------+------------+
| EntryTime               | ExitTime                | Username | Date       |
+-------------------------+-------------------------+----------+------------+
| 2014-09-30 08:42:33.000 | 2014-09-01 18:31:21.000 | User1    | 2014-09-01 |
+-------------------------+-------------------------+----------+------------+
| 2014-10-01 08:31:21.000 | 2014-10-01 17:31:49.000 | User1    | 2014-10-01 |
+-------------------------+-------------------------+----------+------------+
| 2014-10-02 08:31:51.000 | 2014-10-02 18:41:49.000 | User1    | 2014-10-02 |
+-------------------------+-------------------------+----------+------------+

Answer 1

我认为问题出在您的演员身上，请尝试CAST AS DATE：

select name_2,
       min(`date`) as EntryTime,
       max(`date`) as ExitTime,
       cast(`date` As Date) as YourDate
  from table
where UserName like '%User1%'
   and EventTime between '2014-09-30 12:00:00' and '2014-10-05 12:00:00'
 group by cast(`date` As Date), name_2

Answer 2

这将为您提供每个用户每天的最小值和最大值

的用户列表

select cast(Date as datetime) as Date,Name,min(Date) as EntryTime, max(Date) as ExitTime
from table
where Date between '2014-09-30 12:00:00' and '2014-10-05 12:00:00'
group by cast(Date as datetime),Name

您可能需要将日期字段转换为日期类型

Answer 3

试试这个，看看你得到了什么

SELECT MIN（[Date]）AS'EntryTime'， MAX（[Date]）AS'ExportTime'，名称从测试在哪里铸造（[日期]作为日期）BETWEEN施放（getdate（） - 2作为日期）和施放（getdate（）作为日期） AND NAME ='用户1' GROUP BY CAST（[Date] AS DATE），NAME

在我自己的表上测试它可以正常工作。 enter image description here

获取日期范围之间每行的最小和最大日期时间

3 个答案: