Question

I have a Table “Postings”

CREATE TABLE POSTINGS(
    Account_FK INT,
    Department_FK INT,
    Project_FK INT,
    Company_FK INT,
    Year INT,
    Month INT,
    Amount float,
    Handled BIT
)

Im trying to make a select statement that will select the sum of Amounts for each company each month.
Like this:

SELECT Company_FK, Year, Month, Sum(Amount)
FROM Postings
GROUP BY Company_FK, Year, Month

But i will only need the rows that have not been handled. E.g. the rows with Handled = 0

SELECT Company_FK, Year, Month, Sum(Amount)
FROM Postings
WHERE Handled = 0
GROUP BY Company_FK, Year, Month

Now this query will sum up only the rows with Handled = 0 for the Company each year and month.
But i will also need the sums to include all the other rows for the company. I mean, if one row in the company is not handled. I will need to return the company sum of all company-rows.

So if Company_FK = 1 has three postings. All of which have handled = 1. Then this company could be ignored. But if Company_FK = 2 has three postings. And one of them has handled = 0, then i would need to return the sum of all three rows.

Do you understand what i mean?

Any suggestions?

Answer 1

Try this:

SELECT distinct c.Company_FK, c.Year, c.Month, b.Amount FROM Postings c
INNER JOIN
(SELECT Company_FK, Year, Month, Sum(Amount) as 'Amount'
FROM Postings
GROUP BY Company_FK, Year, Month) b ON c.Company_FK = b.Company_FK and c.Year = b.Year and c.Month = b.Month
WHERE c.Handled = 0