How to get the consolidated ServiceID with the sum of File Size associated with over an year

Question

Can anyone please help me on below to get the consolidated ServiceID with the sum of File Size associated with it over an year.

Complete Code (For reference)

If(OBJECT_ID('tempdb..#temp1') Is Not Null)
Begin
    Drop Table #Temp1
End

GO

If(OBJECT_ID('tempdb..#temp2') Is Not Null)
Begin
    Drop Table #Temp2
End
GO

If(OBJECT_ID('tempdb..#temp3') Is Not Null)
Begin
    Drop Table #Temp3
End

GO

If(OBJECT_ID('tempdb..#temp4') Is Not Null)
Begin
    Drop Table #Temp4
End
GO

SELECT *
INTO #Temp1
FROM
(
SELECT 
SUBSTRING(ServiceName,2,3) AS ServiceID 
      , FileTotalSize as FileSize 
      ,year = '1980' from table1 
    ) a

--1981
SELECT *
INTO #Temp2
FROM
(
SELECT 
SUBSTRING(ServiceName,2,3) AS ServiceID 
      , FileTotalSize as FileSize 
      ,year = '1981'
        from table2 
    ) b

--1982
SELECT *
INTO #Temp3
FROM
(
SELECT 
SUBSTRING(ServiceName,2,3) AS ServiceID 
      , FileTotalSize as FileSize
      ,year = '1982' from table3
) c

--1983

SELECT *
INTO #Temp4
FROM
(
SELECT 
SUBSTRING(ServiceName,2,3) AS ServiceID 
      , FileTotalSize as FileSize 
      ,year = '1983' from table4 
    ) d


select ROW_NUMBER() OVER(ORDER BY year ASC) AS ID,ServiceID,year,FileTotalSize AS FileSize1 from #Temp1
select ROW_NUMBER() OVER(ORDER BY year ASC) AS ID,ServiceID,year,FileTotalSize AS FileSize2 from #Temp2
select ROW_NUMBER() OVER(ORDER BY year ASC) AS ID,ServiceID,year,FileTotalSize AS FileSize3 from #Temp3
select ROW_NUMBER() OVER(ORDER BY year ASC) AS ID,ServiceID,year,FileTotalSize AS FileSize4 from #Temp4

Below are the 4 queries existing in #temp tables I finally worked and their outputs:

select ROW_NUMBER() OVER(ORDER BY year ASC) AS ID,ServiceID,year,FileTotalSize AS FileSize1 from #Temp1
select ROW_NUMBER() OVER(ORDER BY year ASC) AS ID,ServiceID,year,FileTotalSize AS FileSize2 from #Temp2
select ROW_NUMBER() OVER(ORDER BY year ASC) AS ID,ServiceID,year,FileTotalSize AS FileSize3 from #Temp3
select ROW_NUMBER() OVER(ORDER BY year ASC) AS ID,ServiceID,year,FileTotalSize AS FileSize4 from #Temp4

Output of the above 4 queries:

My Question : How can I get the below output using the above 4 queries ? Please help me , the way I need to join . I tried my way to join them but sure it is wrong so reached out for help.

Thank you

Answer 1

Here is an example of how this could be done.

Declare @Query1 table (id int, ServiceID int, Year int, FileSize1 int)
Declare @Query2 table (id int, ServiceID int, Year int, FileSize1 int)
Declare @Query3 table (id int, ServiceID int, Year int, FileSize1 int)
Declare @Query4 table (id int, ServiceID int, Year int, FileSize1 int)

insert into @Query1(id,ServiceID,Year,FileSize1) values
(1,121,1980,10),
(2,122,1980,20),
(3,123,1980,30),
(4,121,1980,40)

insert into @Query2(id,ServiceID,Year,FileSize1) values
(1,121,1981,10),
(2,122,1981,20),
(3,123,1981,30),
(4,123,1981,40)

insert into @Query3(id,ServiceID,Year,FileSize1) values
(1,121,1982,10),
(2,122,1982,20),
(3,124,1982,30),
(4,125,1982,40)

insert into @Query4(id,ServiceID,Year,FileSize1) values
(1,123,1983,10),
(2,121,1983,20),
(3,122,1983,30),
(4,121,1983,40)

;With _cte as
(
select ServiceID,Year,FileSize1 as FileSize1 from @Query1 
union all
select ServiceID,Year,FileSize1 as FileSize1 from @Query2 
union all
select ServiceID,Year,FileSize1 as FileSize1 from @Query3 
union all
select ServiceID,Year,FileSize1 as FileSize1 from @Query4 
)

select ServiceID,
sum(case when year = 1980 then FileSize1 end) as FileSize_1980,
sum(case when year = 1981 then FileSize1 end) as FileSize_1981,
sum(case when year = 1982 then FileSize1 end) as FileSize_1982,
sum(case when year = 1983 then FileSize1 end) as FileSize_1983
 from _cte
group by ServiceID

---

| ServiceID | FileSize_1980 | FileSize_1981 | FileSize_1982 | FileSize_1983 |
|-----------|---------------|---------------|---------------|---------------|
| 121       | 50            | 10            | 10            | 60            |
| 122       | 20            | 20            | 20            | 30            |
| 123       | 30            | 70            | NULL          | 10            |
| 124       | NULL          | NULL          | 30            | NULL          |
| 125       | NULL          | NULL          | 40            | NULL          |