Question

我正在制作工厂转移报告：

在我的申请中，我提供了一个用于选择班次和工厂的下拉列表，他们将从日历中选择一个日期

我有3班

shift1从早上7点开始，到下午3点结束
shift2从下午3点开始，到晚上11点结束
shift3从晚上11点开始，到凌晨3点结束

我有一个名为datalogging的表，其中将存储登录信息，如下所示：

Name       Shiftname    operatorname      Date           plantname      line       Machine 
Pradeepa   Shift2(11-7)  Operator 3     2011-05-28       Plant 3        Line5     mc10 
Ashwini   Shift1(7-3)    Operator 1     2011-05-29       Plant 3        Line6     mc12 
Deepika   Shift2(11-7)   Operator 3     2011-05-29       Plant 5        Line9     mc18 
Ashwini   Shift1(7-3)    Operator 1     2011-05-24       Plant 1        Line1     mc1 
Deepika   Shift2(3-11)   Operator 2     2011-05-24       Plant 2        Line3     mc5 
Ashwini   Shift2(3-11)   Operator 2     2011-05-25       Plant 2        Line3     mc5

依旧......

我有一个参数表，如温度，压力，pH值，速度，二氧化碳等

温度表包含以下数据，此表将包含从早上7点到凌晨3点的所有读数

这是温度表读数

Temperature      Time              Date 
27  1900-01-01 13:46:37.000 2011-06-07 00:00:00
27.3    1900-01-01 13:51:37.000 2011-06-07 00:00:00
27.6    1900-01-01 13:56:37.000 2011-06-07 00:00:00
27.9    1900-01-01 14:01:37.000 2011-06-07 00:00:00
28.2    1900-01-01 14:06:37.000 2011-06-07 00:00:00
28.5    1900-01-01 14:11:37.000 2011-06-07 00:00:00
28.8    1900-01-01 14:16:37.000 2011-06-07 00:00:00
27  1900-01-01 15:09:52.000 2011-06-07 00:00:00
27.3    1900-01-01 15:11:52.000 2011-06-07 00:00:00
27.6    1900-01-01 15:13:53.000 2011-06-07 00:00:00
27.9    1900-01-01 15:15:52.000 2011-06-07 00:00:00
28.2    1900-01-01 15:17:52.000 2011-06-07 00:00:00
28.5    1900-01-01 15:19:52.000 2011-06-07 00:00:00
28.8    1900-01-01 15:21:52.000 2011-06-07 00:00:00
29.1    1900-01-01 15:23:52.000 2011-06-07 00:00:00
29.4    1900-01-01 15:25:52.000 2011-06-07 00:00:00
29.7    1900-01-01 15:27:52.000 2011-06-07 00:00:00
30  1900-01-01 15:29:52.000 2011-06-07 00:00:00
30.3    1900-01-01 07:03:10.000 2011-06-07 00:00:00
30.6    1900-01-01 07:05:11.000 2011-06-07 00:00:00
30.9    1900-01-01 07:07:10.000 2011-06-07 00:00:00
31.2    1900-01-01 07:09:10.000 2011-06-07 00:00:00
31.5    1900-01-01 07:11:10.000 2011-06-07 00:00:00
31.8    1900-01-01 07:13:11.000 2011-06-07 00:00:00
31.8    1900-01-01 07:15:11.000 2011-06-07 00:00:00
32.1    1900-01-01 07:17:10.000 2011-06-07 00:00:00
32.4    1900-01-01 07:19:10.000 2011-06-07 00:00:00
32.7    1900-01-01 07:21:10.000 2011-06-07 00:00:00
33  1900-01-01 07:23:11.000 2011-06-07 00:00:00
27  1900-01-01 09:03:10.000 2011-06-07 00:00:00
27.3    1900-01-01 09:05:09.000 2011-06-07 00:00:00
27.6    1900-01-01 09:07:09.000 2011-06-07 00:00:00
27.9    1900-01-01 09:09:09.000 2011-06-07 00:00:00
28.2    1900-01-01 09:11:09.000 2011-06-07 00:00:00
28.5    1900-01-01 09:13:09.000 2011-06-07 00:00:00
28.8    1900-01-01 09:15:09.000 2011-06-07 00:00:00
29.1    1900-01-01 09:17:09.000 2011-06-07 00:00:00
29.4    1900-01-01 09:19:10.000 2011-06-07 00:00:00
29.4    1900-01-01 09:21:09.000 2011-06-07 00:00:00
29.7    1900-01-01 09:23:09.000 2011-06-07 00:00:00
30  1900-01-01 09:25:09.000 2011-06-07 00:00:00
30.3    1900-01-01 09:27:09.000 2011-06-07 00:00:00
27  1900-01-01 10:33:10.000 2011-06-07 00:00:00
27.3    1900-01-01 10:35:10.000 2011-06-07 00:00:00
27.6    1900-01-01 10:37:10.000 2011-06-07 00:00:00
27.9    1900-01-01 10:39:10.000 2011-06-07 00:00:00
28.2    1900-01-01 10:41:10.000 2011-06-07 00:00:00

这是我的压力读数

Pressure      Time                       Date
0.5 1900-01-01 13:46:36.000 2011-06-07 00:00:00
0.9 1900-01-01 13:51:36.000 2011-06-07 00:00:00
1.3 1900-01-01 13:56:36.000 2011-06-07 00:00:00
1.7 1900-01-01 14:01:36.000 2011-06-07 00:00:00
2.1 1900-01-01 14:06:36.000 2011-06-07 00:00:00
2.5 1900-01-01 14:11:36.000 2011-06-07 00:00:00
2.9 1900-01-01 14:16:36.000 2011-06-07 00:00:00
0.5 1900-01-01 15:09:52.000 2011-06-07 00:00:00
0.9 1900-01-01 15:11:51.000 2011-06-07 00:00:00
1.3 1900-01-01 15:13:52.000 2011-06-07 00:00:00
1.7 1900-01-01 15:15:52.000 2011-06-07 00:00:00
2.1 1900-01-01 15:17:51.000 2011-06-07 00:00:00
2.5 1900-01-01 15:19:51.000 2011-06-07 00:00:00
2.9 1900-01-01 15:21:51.000 2011-06-07 00:00:00
3.3 1900-01-01 15:23:51.000 2011-06-07 00:00:00
3.7 1900-01-01 15:25:51.000 2011-06-07 00:00:00
4.1 1900-01-01 15:27:51.000 2011-06-07 00:00:00
4.5 1900-01-01 15:29:51.000 2011-06-07 00:00:00
4.9 1900-01-01 07:03:09.000 2011-06-07 00:00:00
5.3 1900-01-01 07:05:09.000 2011-06-07 00:00:00
5.7 1900-01-01 07:07:09.000 2011-06-07 00:00:00
6.1 1900-01-01 07:09:09.000 2011-06-07 00:00:00
6.5 1900-01-01 07:11:09.000 2011-06-07 00:00:00
6.9 1900-01-01 07:13:09.000 2011-06-07 00:00:00
6.9 1900-01-01 07:15:09.000 2011-06-07 00:00:00
7.3 1900-01-01 07:17:09.000 2011-06-07 00:00:00
7.7 1900-01-01 07:19:09.000 2011-06-07 00:00:00
8.1 1900-01-01 07:21:09.000 2011-06-07 00:00:00
8.5 1900-01-01 07:23:09.000 2011-06-07 00:00:00
0.5 1900-01-01 09:03:09.000 2011-06-07 00:00:00
0.9 1900-01-01 09:05:09.000 2011-06-07 00:00:00
1.3 1900-01-01 09:07:09.000 2011-06-07 00:00:00
1.7 1900-01-01 09:09:09.000 2011-06-07 00:00:00
2.1 1900-01-01 09:11:09.000 2011-06-07 00:00:00
2.5 1900-01-01 09:13:09.000 2011-06-07 00:00:00
2.9 1900-01-01 09:15:09.000 2011-06-07 00:00:00
3.3 1900-01-01 09:17:09.000 2011-06-07 00:00:00
3.3 1900-01-01 09:19:09.000 2011-06-07 00:00:00
3.7 1900-01-01 09:21:09.000 2011-06-07 00:00:00
4.1 1900-01-01 09:23:09.000 2011-06-07 00:00:00
4.5 1900-01-01 09:25:09.000 2011-06-07 00:00:00
4.9 1900-01-01 09:27:09.000 2011-06-07 00:00:00
0.5 1900-01-01 10:33:10.000 2011-06-07 00:00:00
0.9 1900-01-01 10:35:10.000 2011-06-07 00:00:00
1.3 1900-01-01 10:37:10.000 2011-06-07 00:00:00
1.7 1900-01-01 10:39:10.000 2011-06-07 00:00:00
2.1 1900-01-01 10:41:10.000 2011-06-07 00:00:00
2.5 1900-01-01 17:02:57.000 2011-06-07 00:00:00
2.9 1900-01-01 17:04:57.000 2011-06-07 00:00:00
3.3 1900-01-01 17:06:57.000 2011-06-07 00:00:00
3.7 1900-01-01 17:08:57.000 2011-06-07 00:00:00
4.1 1900-01-01 17:10:57.000 2011-06-07 00:00:00
4.5 1900-01-01 17:12:57.000 2011-06-07 00:00:00
4.9 1900-01-01 17:14:57.000 2011-06-07 00:00:00

依旧......

用户将从下拉列表中选择一行并切换，他将从日历中选择日期如果用户选择shift1，工厂1和日期07/06/2011应显示上午7点到下午3点之间的读数在我的报告中

我的报告应如下所示：

Machine     Shiftname   Date               Time             Temperature     Pressure
mc1         Shift1      2011/06/07      07:03:10.000          30.3           4.9
mc1         Shift1      2011/06/07      07:05:11.000          30.6           5.3
mc1         Shift1      2011/06/07      07:07:10.000          30.9           5.7

像这样我希望从7到3点的所有读数来自温度，压力，pH，二氧化碳，d02

任何人都可以帮助我。

Answer 1

Select 
  DL.Machine, 
  DL.ShiftName,
  @MyDate,
  case when T.Time is null then P.Time else T.Time end as Time,
  T.Temperature,
  NULL as Pressure
From
  DataLogging as DL
  inner join Temperature as T on "reading time is within this shift's timespan"
Where
  DL.Date = @MyDate
  and DL.ShiftName = @MyShiftName

UNION

Select 
  DL.Machine, 
  DL.ShiftName,
  @MyDate,
  case when T.Time is null then P.Time else T.Time end as Time,
  NULL as Temperature,
  P.Pressure
From
  DataLogging as DL
  inner join Pressure as P on "reading time is within this shift's timespan"
Where
  DL.Date = @MyDate
  and DL.ShiftName = @MyShiftName

让我在这里解释一下方法......

从DataLogging开始。您关心的是有特定班次的员工。您可以通过指定输入DATE并输入SHIFT在WHERE子句中定义该员工。
加入Temperature表格，因为您希望查看该人员班次的所有温度读数。
加入Pressure表格，因为您希望看到该人员轮班的所有压力读数。
为什么我们UNION？好吧，主要是为了防止欺骗（如果我们在同一个Select语句中加入两个读数表，则会存在Dupes）。正如您所注意到的，由于它们具有不同的时间戳，因此很难加入温度读数和压力读数。如果他们相隔一秒钟，那么没有什么可以加入的。因此，我认为最好的解决方案就是按照上面的说法简单地记录每次阅读。以上将首先列出所有温度读数，然后列出所有压力读数 - 并将它们组合到通过UNION返回的相同表中。

注意：您可能应该使用datetime字段而不是Date列和时间列，因为它会将日期和时间存储在一个领域。

注意：您可以将那些具有相同日期和读数的读数组合在一起。通过在时间上使用子查询和grouping subquery来确定时间。

注意： "reading time is within this shift's timespan"包含在上面，表示您需要填写的代码。您可能希望使用case语句来调整{{1}仅包含具有特定班次的项目

<强>参考

Union

工厂转移报告

1 个答案: