每日总和，月初至今，MTD平均值，上个月平均值

Question

请帮助我解决与SUM，AVG，MTD SUM相关的问题，关于通过设施中的仪表查找油量流量。

说，有两个设施

1. NORTH - 有米N1，N2
2. SOUTH - 有米S1，S2

每天都有流量计。表FACILITY_OIL如下所示 -

TimeStamp----------Facility----------Meter----------OilVolume

10-SEP-2014    |   NORTH        |    N1       |     100

10-SEP-2014    |   NORTH        |    N2       |     200

10-SEP-2014    |   SOUTH        |    S1       |     300

10-SEP-2014    |   SOUTH        |    S2       |     400


10-OCT-2014    |   NORTH        |    N1       |     100

10-OCT-2014    |   NORTH        |    N2       |     200

10-OCT-2014    |   SOUTH        |    S1       |     300

10-OCT-2014    |   SOUTH        |    S2       |     400

11-OCT-2014    |   NORTH        |    N1       |     400

11-OCT-2014    |   NORTH        |    N2       |     300

11-OCT-2014    |   SOUTH        |    S1       |     200

11-OCT-2014    |   SOUTH        |    S2       |     100

12-OCT-2014    |   NORTH        |    N1       |     100

12-OCT-2014    |   NORTH        |    N2       |     200

12-OCT-2014    |   SOUTH        |    S1       |     300

12-OCT-2014    |   SOUTH        |    S2       |     400

我必须找到按设施分组的以下内容：

1. 某一天设施中所有仪表的油量总和。
2. 油量通过米的月初至今。
3. MTD油量的平均值
4. 上个月的油量平均值

输出应如下所示12-OCT

Facility-----DailySum-----MTD_Sum-----MTD_Avg-----Prev_Month_Avg

NORTH    |   300     |    1300    |   108.33   |  10

SOUTH    |   700     |    1700    |   141.66   |  23.33

Here for NORTH on 12-OCT,

DailySum = (N1+N2)

MTD SUM = (N1 + N2) from 01-Oct to 12-Oct

MTD_Avg = MTD_SUM/12days

Pre_Month_Avg = (100+200)/30

是否可以以相同的格式输出。我的局限是我不能使用SP。它必须是一种观点。

我尝试使用group by但无法实现它。任何帮助深表感谢。万分感谢！

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感谢您的帮助！

似乎有一天工作完美。我能够使用您的查询。

我添加了＃rol;＆＃39;在最后获得总和。但是，现在需求已更改为获取当天每天的数据集。所以看起来应该如下：

Timestamp--Facility--DailySum--MTD_Sum--MTD_Avg--Prev_Month_Avg
10-Oct | NORTH | 300 | 1300 | 108.33 | 10
10-Oct | SOUTH | 700 | 1700 | 141.66 | 23.33
10-Oct | TOTAL | 1000| 3000 | 249.99 | 33.33

12-Oct | NORTH | 300 | 1300 | 108.33 | 10
12-Oct | SOUTH | 700 | 1700 | 141.66 | 23.33
12-Oct | TOTAL | 1000| 3000 | 249.99 | 33.33

我尝试过你的修改过的查询 -

select case when null then 'TOTAL' else Facility end as 'Facility'
,sum(case when [TimeStamp]>=dateadd(dd,datediff(dd,0,getdate()),0) then OilVolume else 0 end) as DailySum
,sum(case when [TimeStamp]>=dateadd(mm,datediff(mm,0,getdate()),0) then OilVolume else 0 end) as MTD_Sum
,sum(case when [TimeStamp]>=dateadd(mm,datediff(mm,0,getdate()),0) then OilVolume else 0 end)/datepart(dd,getdate()) as MTD_Avg
,sum(case when [TimeStamp]>=dateadd(mm,datediff(mm,0,getdate()),0) then 0 else OilVolume end)/datepart(dd,dateadd(dd,datepart(dd,getdate())*-1,getdate())) as Prev_Month_Avg
from yourtable
where [TimeStamp]>=dateadd(mm,datediff(mm,0,getdate())-1,0)
group by Timestamp, Facility with rollup

它似乎不适用于简单的分组。我不知道如何获得一天的重复结果。我不能使用CURSOR或循环视图。请帮忙。谢谢！

Answer 1

我会使用案例

select
sum(case when timestamp = '12-OCT-2014' then meter + oilVolume else 0 end),
sum(case when timestamp between '01-OCT-2014' and '12-OCT-2014' then meter + volume else 0 end),
sum(case when timestamp between  '01-OCT-2014' and '12-OCT-2014' then meter + volume else 0 end) / datediff("dd",'01-OCT-2014' , '12-OCT-2014'),
sum(case when timestamp between '01-SEP-2014' and '30-SEP-2014' then meter + volume  else 0 end ) / datediff("dd",'01-SEP-2014' , '30-SEP-2014')
from ...

您可以使用参数更改日期。