列出给定金属在该过程的最后一小时内消耗的总功率

Question

我有两个 table。 Metal master table 具有实际的金属开始和结束时间戳。金属间隔 table 具有特定时间戳的电量读数。特定时间间隔的功率是所有读数消耗的电量的累积差异在金属间隔数据的时间间隔中。我正在尝试获取在该过程的最后一个小时内给定金属消耗的总功率的列表。你能帮我解决这个问题吗？

这是示例 table:

Metal_Interval_Data

MetalID TreatID Plant   ElctrctyConsumed    ReadingTime 
123456  8       MEAF    21500        2017-07-01 14:01:34.34
123456  8       MEAF    21650        2017-07-01 14:01:44.44
123456  8       MEAF    0            2017-07-01 09:54:53.53
123478  8       MEAF    0            2017-07-01 23:37:19.19
123478  8       MEAF    150          2017-07-02 00:32:08.08

Metal_Master_Data

MetalID MetalStartActual        MetalStartPlanned       MetalEndActual   MetalEndPlanned
123456  2017-07-01 09:51:42.42  2017-06-30 08:59:35.35  2017-07-01 16:05:33.33  2017-06-30 14:59:35.35
123478  2017-07-01 23:30:31.31  2017-06-30 20:00:00.00  2017-07-02 00:33:25.25  2017-06-30 20:59:59.59
124302  2017-07-02 01:42:42.42  2017-07-01 20:51:47.47  2017-07-02 02:17:14.14  2017-07-01 21:51:47.47

Answer 1

试试下面的脚本-

SELECT A.MetalID,SUM(B.ElctrctyConsumed) TotalConsumed
FROM Metal_Master_Data A
INNER JOIN Metal_Interval_Data B ON A.MetalID = B.MetalID
WHERE B.ReadingTime BETWEEN DATEADD(HH,-1,A.MetalEndActual) AND A.MetalEndActual
GROUP BY A.MetalID

Answer 2

@mkRabbani 是正确的，但它特定于给定的金属 ID

SELECT A.MetalID,SUM(B.ElctrctyConsumed) TotalConsumed
FROM Metal_Master_Data A
INNER JOIN Metal_Interval_Data B ON A.MetalID = B.MetalID
WHERE B.ReadingTime BETWEEN DATEADD(HH,-1,A.MetalEndActual) 
AND A.MetalEndActual and A.MetalID=@givenmetalid
GROUP BY A.MetalID

列出给定金属在该过程的最后一小时内消耗的总功率

List the total power consumed for a given metal in the last one hour of the process

sql

sql-server

sql-server-2008