Inner Join Subquery data display

Question

I have a query that uses a sub query on a INNER JOIN 
SELECT  SUM(A.qtyord), A.Item, A.Description, A.Class, B.Forecast, 
                CASE 
                        WHEN B.Forcast = 0
                THEN A.Item 
                ELSE 
                        CASE 
                        WHEN (SUM(A.ORDQ)/B.Forcase) > 0.20  
                        THEN A.Item 
                        ELSE '' 
                    END  
                END AS SKU
            FROM        tableA A
        INNER JOIN ((SELECT Item, ( SUM(BBAL) + SUM(RECV) + SUM(ADJU) - SUM(ALOC)) as onhand FROM tableD GROUP BY Item)) D ON A.Item = D.Item
        INNER JOIN tableB B ON A.Item=B.Item
        INNER JOIN tableC C ON B.Item=C.Item
    GROUP BY A.Item, A.Description, A.Class, B.Forecast
    ORDER BY A.Class DESC
How do I get the data from the sub query to display.

Answer 1

Hello,
Please check whether the following statement meet your requirment:
;With cte as
SELECT Item, ( SUM(BBAL) + SUM(RECV) + SUM(ADJU) - SUM(ALOC)) as onhand
FROM tableD GROUP BY Item)
SELECT SUM(A.qtyord), A.Item, A.Description, A.Class, B.Forecast, cte.onhand,
CASE
WHEN B.Forcast = 0
THEN A.Item
ELSE
CASE
WHEN (SUM(A.ORDQ)/B.Forcase) > 0.20
THEN A.Item
ELSE ''
END
END AS SKU
FROM tableA A
INNER JOIN cte ON A.Item = cte.Item
INNER JOIN tableB B ON A.Item=B.Item
INNER JOIN tableC C ON B.Item=C.Item
GROUP BY A.Item, A.Description, A.Class, B.Forecast
ORDER BY A.Class DESC
Regards,
Fanny Liu
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