ocp题库怎么背：11g-051-V9.02-第161题
ocp题库怎么背：11g-051-V9.02-第161题，完整题库请点击这里联系老师咨询了解
161. View the exhibit and examine the description for the SALES and CHANNELS tables.
You issued the following SQL statement to insert a row in the SALES table:
INSERT INTO sales VALUES
(23, 2300, SYSDATE, (SELECT channel_id
FROM channels
WHERE channel_desc='Direct Sales'), 12, 1, 500);
Which statement is true regarding the execution of the above statement?
A. The statement will execute and the new row will be inserted in the SALES table.
B. The statement will fail because subquery cannot be used in the VALUES clause.
C. The statement will fail because the VALUES clause is not required with subquery.
D. The statement will fail because subquery in the VALUES clause is not enclosed with in single quotation marks .
Answer: A
试题解析：
可以在values括号中使用子查询
该语句可以执行成功，前提是子查询的结果是一个值。
精华阅读