Как получить ожидаемый результат?

Question

SELECT 
    TO_CHAR(TO_DATE(TO_CHAR(C.DATE_SK),'YYYY-MM-DD'),'MON'), 
    A.PRODUCT, 
    c.REG_HOURS + c.OFF_HOURS 
FROM 
    DIM_PRODUCT A 
INNER JOIN 
    DIM_TICKET B ON A.PRODUCT_SK = B.PRODUCT_SK 
INNER JOIN 
    FACT_TIMESHEET C ON C.TICKET_SK = B.TICKET_SK 
GROUP BY 
    A.PRODUCT, c.REG_HOURS + c.OFF_HOURS, 
    TO_CHAR(TO_DATE(TO_CHAR(C.DATE_SK),'YYYY-MM-DD'),'MON'); 

Мой вывод, как:

+------------------------------------------------+ 
| col1(month) col2(product name) col3(hours) | 
+------------------------------------------------+ 
| mar    aaa     1   | 
| mar    aaa     2   | 
| mar    aaa     3   | 
| apr    bbb     2.5  | 
| apr    bbb     3   | 
+------------------------------------------------+ 

Мой ожидаемый результат, как:

+-----------------------------------------------+ 
| col1(month) col2(product name) col3(hours) | 
+-----------------------------------------------+ 
| mar   aaa     6   | 
| apr   bbb     5.5  | 
+-----------------------------------------------+ 

Answer 1

Как насчет этого?

SELECT A.MONTH, A.PRODUCT_NAME, SUM(A.HOURS) 
FROM (YOUR QUERY) A 
GROUP BY A.MONTH, A.PRODUCT_NAME;