【OCP题库-12c】最新CUUG OCP 071考试题库(69题)
69、(31-1)choose the best answer:
Evaluate the following query:
SELECT INTERVAL '300' MONTH,
INTERVAL '54-2' YEAR TO MONTH,
INTERVAL '11:12:10.1234567' HOUR TO SECOND
FROM dual;
What is the correct output of the above query?
A) +25-00 , +00-650, +00 11:12:10.123457
B) +25-00 , +54-02, +00 11:12:10.123457
C) +00-300, +00-650, +00 11:12:10.123457
D) +00-300, +54-02, +00 11:12:10.123457
Answer:B
(解析:
INTERVAL '300' MONTH:300 个月为+25-00(25 年,即 25*12+0)
INTERVAL '54-2' YEAR TO MONTH:+54-02,表示 54 年零 2 个月
INTERVAL '11:12:10.1234567' HOUR TO SECOND: +00 11:12:10.123457(+00 表示 0 天),表示 11 个小时,12 分,10.123457 秒
)
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