Question

我有一组表格如下：

客户（的 cus_id 下，cus_name）

帐户（的 acc_num 下，acc_balance，的 bra_code ）

分支（的 bra_code 下，bra_address）

如果我想列出所有拥有多个帐户的客户，分支及其详细信息。我是oracle的新手，希望每个人都能提供帮助。

这实际上是我的任务的一部分，到目前为止，我所做的就是这样......

SELECT  DISTINCT 
        C.CUS_ID, 
        (C.CUS_FIRST_NAME || ' ' || C.CUS_LAST_NAME) AS CUS_NAME,
        C.CUS_IC, 
        C.CUS_ADDRESS, 
        C.CUS_POSTCODE, 
        C.CUS_CONTACT, 
        C.CUS_EMAIL, 
        C.CUS_AGE,     
        C.CUS_GENDER, 
        C.CUS_STATUS,
        B.BRA_CODE, 
        B.BRA_ADDRESS, 
        B.BRA_POSTCODE, 
        R.REG_STATE, 
        R.REG_COUNTRY
FROM CUSTOMER C, ACCOUNT A,BRANCH B, REGION R
WHERE C.CUS_ID=A.CUS_ID AND 
      A.BRA_CODE=B.BRA_CODE AND 
      B.REG_ID=R.REG_ID AND 
      A.BRA_CODE IN (SELECT A.BRA_CODE
                     FROM CUSTOMER C, ACCOUNT A,BRANCH B
                     WHERE C.CUS_ID=A.CUS_ID AND A.BRA_CODE=B.BRA_CODE
                     GROUP BY A.BRA_CODE HAVING COUNT(A.BRA_CODE)>1)
GROUP BY 
        C.CUS_ID,
        C.CUS_FIRST_NAME,
        C.CUS_LAST_NAME,
        C.CUS_IC, 
        C.CUS_ADDRESS, 
        C.CUS_POSTCODE, 
        C.CUS_CONTACT, 
        C.CUS_EMAIL, 
        C.CUS_AGE, 
        C.CUS_GENDER, 
        C.CUS_STATUS, 
        B.BRA_CODE, 
        B.BRA_ADDRESS, 
        B.BRA_POSTCODE, 
        R.REG_STATE, 
        R.REG_COUNTRY 
        HAVING COUNT(C.CUS_ID)>1;

Answer 1

试试这个：

SELECT *
FROM customer c, account a, branch b
WHERE c.cus_id IN (
        SELECT a2.cus_id
        FROM account a2, branch b2
        WHERE a2.bra_code = b2.bra_code
        GROUP BY a2.cus_id
        HAVING COUNT(DISTINCT(b2.bra_code)) > 1
    )
    AND c.cus_id = a.cus_id
    AND a.bra_code = b.bra_code

Answer 2

答案可能是这样的：

SELECT  DISTINCT 
        C.CUS_ID, 
        (C.CUS_FIRST_NAME || ' ' || C.CUS_LAST_NAME) AS CUS_NAME,
        C.CUS_IC, 
        C.CUS_ADDRESS, 
        C.CUS_POSTCODE, 
        C.CUS_CONTACT, 
        C.CUS_EMAIL, 
        C.CUS_AGE,     
        C.CUS_GENDER, 
        C.CUS_STATUS,
        B.BRA_CODE, 
        B.BRA_ADDRESS, 
        B.BRA_POSTCODE, 
        R.REG_STATE, 
        R.REG_COUNTRY
FROM CUSTOMER C, ACCOUNT A,BRANCH B, REGION R
WHERE C.CUS_ID=A.CUS_ID AND 
      A.BRA_CODE=B.BRA_CODE AND 
      B.REG_ID=R.REG_ID AND 
      EXISTS (SELECT NULL FROM ACCOUNT O
              WHERE A.CUS_ID = O.CUS_ID AND A.BRA_CODE <> O.BRA_CODE)

列出连接表记录

2 个答案: