OCP-1Z0-051 補充題庫第6題 SELECT查詢語句

阿新 • • 發佈：2019-01-26

A.
SELECT cust_city, AVG(cust_credit_limit)
FROM customers
WHERE cust_city IN ('WASHINGTON', 'NEW YORK')
GROUP BY cust_credit_limit, cust_city;
B.
SELECT cust_city, AVG(cust_credit_limit)
FROM customers
WHERE cust_city IN ('WASHINGTON', 'NEW YORK')
GROUP BY cust_city, cust_credit_limit;
C.
SELECT cust_city, AVG(cust_credit_limit)
FROM customers
WHERE cust_city IN ('WASHINGTON', 'NEW YORK')
GROUP BY cust_city;

D.
SELECT cust_city, AVG(NVL(cust_credit_limit, 0))
FROM customers
WHERE cust_city IN ('WASHINGTON', 'NEW YORK');

OCP-1Z0-051 補充題庫第6題 SELECT查詢語句

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