How can I join 2 table together? - sql

Question

I'm trying to create a join table with 2 existing tables. something like below:
This is the first table queries and looks like this
https://ibb.co/sg2MXKf
SELECT
DATEPART( week, dbo.Income.IncomeDate ) AS [Week Income],
DATEPART( YEAR, dbo.Income.IncomeDate ) AS [Year],
SUM ( dbo.Income.CardAmount ) AS [Total Card],
SUM ( dbo.Income.CashAmount ) AS [Total Cash],
SUM ( dbo.Income.TipsAmount ) AS [Total Tip],
SUM ( dbo.Income.SalaryAmount ) AS [Total Salary],
SUM ( dbo.Income.Adjustment ) AS [Total Adjustment]
FROM
dbo.Income
GROUP BY
DATEPART( week, dbo.Income.IncomeDate ),
DATEPART( YEAR, dbo.Income.IncomeDate )
ORDER BY
DATEPART(YEAR, dbo.Income.IncomeDate )
And this is the second table queries and looks like this
https://ibb.co/z8sRwpT
SELECT
DATEPART( wk, dbo.Transactions.PaymentMadeOn ) AS [Week],
COUNT (DATEPART( wk, dbo.Transactions.PaymentMadeOn )) AS [Expenses Count],
DATEPART( YEAR, dbo.Transactions.PaymentMadeOn ) AS [Year],
SUM ( dbo.Transactions.PaymentAmount ) AS [Total]
FROM
dbo.Transactions
GROUP BY
DATEPART( wk, dbo.Transactions.PaymentMadeOn ),
DATEPART( YEAR, dbo.Transactions.PaymentMadeOn )
ORDER BY
DATEPART( YEAR, dbo.Transactions.PaymentMadeOn )
What I expected is something this. Both table 1 and 2 combined, and the total expenses added.
https://ibb.co/0DbZLYV

Answer 1

As commented by SO folks, we cannot access the images that describe your expected results. However we understand that you are looking to JOIN the results of both queries that you are showing.
Here is how to do it : you turn each query into a subquery, and you JOIN them together on their common key fields ; in your use case, this must be Year and Week. The ORDER BY clause needs to be moved to the outer query. In the SELECT, WHERE and ORDER BY clauses, you can freely access all the fields from the subqueries, using the aliases that you defined (here A and B).
Sample code (you will have to adapt the SELECT, I cannot tell what you want it to look like) :
SELECT
A.[Week Income],
A.[Year],
A.[Total] - B.[Total Salary] AS [Balance]
...
FROM (
SELECT
DATEPART( week, dbo.Income.IncomeDate ) AS [Week Income],
DATEPART( YEAR, dbo.Income.IncomeDate ) AS [Year],
SUM ( dbo.Income.CardAmount ) AS [Total Card],
SUM ( dbo.Income.CashAmount ) AS [Total Cash],
SUM ( dbo.Income.TipsAmount ) AS [Total Tip],
SUM ( dbo.Income.SalaryAmount ) AS [Total Salary],
SUM ( dbo.Income.Adjustment ) AS [Total Adjustment]
FROM
dbo.Income
GROUP BY
DATEPART( week, dbo.Income.IncomeDate ),
DATEPART( YEAR, dbo.Income.IncomeDate )
) AS A
LEFT JOIN (
SELECT
DATEPART( wk, dbo.Transactions.PaymentMadeOn ) AS [Week],
COUNT (DATEPART( wk, dbo.Transactions.PaymentMadeOn )) AS [Expenses Count],
DATEPART( YEAR, dbo.Transactions.PaymentMadeOn ) AS [Year],
SUM ( dbo.Transactions.PaymentAmount ) AS [Total]
FROM
dbo.Transactions
GROUP BY
DATEPART( wk, dbo.Transactions.PaymentMadeOn ),
DATEPART( YEAR, dbo.Transactions.PaymentMadeOn )
) AS B ON A.[Week Income] = B.[Week] AND A.[Year] = B.[Year]
ORDER BY
A.[Year],
A.[Week Income]