本文探讨了在新加坡连接芝加哥远程数据库时执行特定SQL命令的结果。该命令用于计算基于芝加哥当前时间的促销活动开始天数。
QUESTION NO: 58
You are currently located in Singapore and have connected to a remote database in Chicago.
You issue the following command:
Exhibit:
PROMOTIONS is the public synonym for the public database link for the PROMOTIONS table.
What is the outcome?
A. Number of days since the promo started based on the current Singapore data and time.
B. An error because the ROUND function specified is invalid
C. An error because the WHERE condition specified is invalid
D. Number of days since the promo started based on the current Chicago data and time
Answer: D
答案解析：
参考：81：http://blog.youkuaiyun.com/rlhua/article/details/12854435
Explanation:
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