How to insert data from 4 queries into one table when the 4 queries have data that are not unique?

Question

to be more clear I have these kind of data.

Query 1) Data from 2016

Item       Price        Quantity

Shoe        20             10
Shoe        30            


        

Answer 1

You can try following query, I have used T2016, T2017 etc as table names for year specific data.

select
T16.Item
,T16.Price [Price2016]
,T16.Quantity [Quantity2016]
,T17.Price [Price2017]
,T17.Quantity [Quantity2017]
,T18.Price [Price2018]
,T18.Quantity [Quantity2018]
,T19.Price [Price2019]
,T19.Quantity [Quantity2019]
from 
(select *, ROW_NUMBER() over(Partition by Item order by Price) [row] from T2016) T16
left join (select *, ROW_NUMBER() over(Partition by Item order by Price) [row] from     T2017) T17 on T16.Item=T17.Item and T16.row=T17.row
left join (select *, ROW_NUMBER() over(Partition by Item order by Price) [row] from T2018) T18 on T16.Item=T18.Item and T16.row=T18.row
left join (select *, ROW_NUMBER() over(Partition by Item order by Price) [row] from T2019) T19 on T16.Item=T19.Item and T16.row=T19.row

Answer 2

Try this as just an idea-

SELECT Item,
SUM(Price2016),SUM(Quantity2016),
SUM(Price2017),SUM(Quantity2017),
SUM(Price2018),SUM(Quantity2018),
SUM(Price2019),SUM(Quantity2019)
FROM
(
    SELECT Item, 
    Price Price2016, Quantity  Quantity2016,
    NULL Price2017,NULL   Quantity2017  
    NULL Price2018,NULL   Quantity2018   
    NULL Price2019, NULL  Quantity2019
    FROM 2016

    UNION ALL

    SELECT Item, 
    NULL Price2016, NULL Quantity2016,
    Price Price2017,Quantity Quantity2017  
    NULL Price2018,NULL   Quantity2018   
    NULL Price2019, NULL  Quantity2019
    FROM 2017

    UNION ALL

    SELECT Item, 
    NULL Price2016, NULL  Quantity2016,
    NULL Price2017,NULL   Quantity2017  
    Price Price2018,Quantity   Quantity2018   
    NULL Price2019, NULL  Quantity2019
    FROM 2018

    UNION ALL

    SELECT Item, 
    NULL Price2016, NULL Quantity2016,
    NULL Price2017,NULL   Quantity2017  
    NULL Price2018,NULL   Quantity2018   
    Price Price2019, Quantity Quantity2019
    FROM 2019
)A
GROUP BY Item

Answer 3

J,

I have seen the above solution and it is also valid but you also can try using PIVOT. I have created a demo for you, please check this solution also that might helps you.

DEMO

DECLARE TABLES & INSERT RECORDS

DECLARE @Table2016 AS TABLE ( Item VARCHAR(50), Price FLOAT, Quantity INT ); 
DECLARE @Table2017 AS TABLE ( Item VARCHAR(50), Price FLOAT, Quantity INT ); 
DECLARE @Table2018 AS TABLE ( Item VARCHAR(50), Price FLOAT, Quantity INT );
DECLARE @Table2019 AS TABLE ( Item VARCHAR(50), Price FLOAT, Quantity INT );

INSERT INTO @Table2016 (Item,Price,Quantity) VALUES
('Shoe'  ,20,10),
('Shoe'  ,30,15),
('Cups' ,10,30),
('Towels',30,20),
('Towels',25,20),
('Towels',20,20)

INSERT INTO @Table2017 (Item,Price,Quantity) VALUES
('Shoe'  ,40,30),
('Shoe'  ,50,20),
('Towels',30,30),
('Towels',20,30)

INSERT INTO @Table2018 (Item,Price,Quantity) VALUES
('Shoe'  ,20,10),
('Cups'  ,10,30),
('Towels',30,20),
('Towels',25,20),
('Towels',20,20)

INSERT INTO @Table2019 (Item,Price,Quantity) VALUES
('Shoe'  ,20,10),
('Shoe'  ,30,15),
('Cups'  ,10,30),
('Towels',30,20),
('Towels',25,20),
('Towels',20,20)

MARGE ALL TABLES AND INSERT INTO TEMP TABLE

    SELECT Item,Price,Quantity,PriceYear,QuantityYear INTO TempFinal
    FROM (
    SELECT Item,Price,Quantity, 'Price2016' as PriceYear,'Quantity2016' as QuantityYear FROM @Table2016
    UNION ALL                                      
    SELECT Item,Price,Quantity, 'Price2017' as PriceYear,'Quantity2017' as QuantityYear FROM @Table2017
    UNION ALL                                      
    SELECT Item,Price,Quantity, 'Price2018' as PriceYear,'Quantity2018' as QuantityYear FROM @Table2018
    UNION ALL                                      
    SELECT Item,Price,Quantity, 'Price2019' as PriceYear,'Quantity2019' as QuantityYear FROM @Table2019
    ) MyTables

QUERY WITHOUT GROUPBY

    SELECT item, [Price2016],[Quantity2016],[Price2017],[Quantity2017],[Price2018],[Quantity2018],[Price2019],[Quantity2019]
    FROM (
    SELECT item,Price,Quantity,PriceYear,QuantityYear
    FROM TempFinal) up
    PIVOT (SUM(Quantity) FOR QuantityYear IN ([Quantity2016],[Quantity2017],[Quantity2018],[Quantity2019])) AS pvt
    PIVOT (SUM(Price) FOR PriceYear IN ([Price2016],[Price2017],[Price2018],[Price2019])) AS pvt2
    ORDER BY item

QUERY WITH GROUPBY

     SELECT item, SUM([Price2016])[Price2016],SUM([Quantity2016])[Quantity2016],SUM([Price2017])[Price2017],SUM([Quantity2017])[Quantity2017],SUM([Price2018])[Price2018],SUM([Quantity2018])[Quantity2018],SUM([Price2019])[Price2019],SUM([Quantity2019])[Quantity2019]
    FROM (
    SELECT item,Price,Quantity,PriceYear,QuantityYear
    FROM TempFinal) up
    PIVOT (SUM(Quantity) FOR QuantityYear IN ([Quantity2016],[Quantity2017],[Quantity2018],[Quantity2019])) AS pvt
    PIVOT (SUM(Price) FOR PriceYear IN ([Price2016],[Price2017],[Price2018],[Price2019])) AS pvt2
    GROUP by item
    ORDER BY item

DROP TEMP TABLE

DROP TABLE TempFinal

Answer 4

Try use it, It includes GROUP BY the items and the prices.

SELECT Item,
Price,
SUM(Quantity2016),
SUM(Quantity2017),
...
FROM
(
    --query 1:

    SELECT Item, 
    Price,
    Quantity AS Quantity2016,
    NULL AS Quantity2017  
    NULL AS Quantity2018   
    NULL AS Quantity2019
    FROM 2016

    UNION ALL

    --query 2:

    SELECT Item, 
    Price,
    NULL AS Quantity2016,
    Quantity AS Quantity2017  
    NULL AS Quantity2018   
    NULL AS Quantity2019
    FROM 2017

    UNION ALL

    --query 3:

    SELECT Item, 
    Price,
    NULL AS Quantity2016,
    NULL AS Quantity2017  
    Quantity AS Quantity2018   
    NULL AS Quantity2019
    FROM 2018

    UNION ALL
    ...

)A
GROUP BY Item, Price