总和和不同不会改变结果？

我是一个新手，试图在这里解决这个问题，到目前为止还没有运气，非常感谢任何帮助！

Select Distinct
   (AB.agency_no || '-' || ab.branch_no) AS "AGENCY-BRANCH",
   count (AB.agency_no || '-' || ab.branch_no) AS Occurences,
   A.AGY_NAME AS AGENCY,
   Sum(AB.annual_premium) as Premium
 From Agency_Book_View AB, Agency A, Branch B
 Where AB.agency_no = A.Agency_No
   AND B.EXPIRATION_DATE = TO_DATE('12-31-2078', 'MM-DD-YYYY')
   AND B.EFFECTIVE_DATE <= sysdate and b.effective_date >=sysdate - 364
 Group by AB.agency_no || '-' || ab.branch_no, A.Agy_Name, ab.annual_premium
 Order by AB.agency_no || '-' || ab.branch_no

因此，我试图返回每个“代理分支机构”的年度总保费，并且我多次出现代理分支机构。我正在尝试为每个代理分支机构分配一条线路。我希望这一点很清楚。我尝试包含结果集，但不允许在我的帖子中包含图片。

非常感谢！

Brad

尝试这个 ：

SELECT (AB.agency_no || '-' || AB.branch_no) AS "AGENCY-BRANCH",
    COUNT(AB.agency_no || '-' || AB.branch_no) AS Occurences,
    A.AGY_NAME AS AGENCY,
    SUM(AB.annual_premium) AS Premium
FROM Agency_Book_View AB, Agency A, Branch B
WHERE AB.agency_no = A.Agency_No AND AB.branch_no = B.branch_no
  AND B.EXPIRATION_DATE = TO_DATE('12-31-2078', 'MM-DD-YYYY')
  AND B.EFFECTIVE_DATE <= SYSDATE AND B.effective_date >= SYSDATE - 364
GROUP BY AB.agency_no || '-' || AB.branch_no, A.Agy_Name
ORDER BY AB.agency_no || '-' || AB.branch_no

我加入了B表和AB表，删除了DISTINCT和GROUPed BY ab.annual_premium。