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  • 【Oracle 12c】最新CUUG OCP-071考试题库(58题)

    58、(16-1) choose the best answer:

    Examine the structure of the BOORSTRANSACTIONS table:

    Examine the SQL statement:

    SQL> SELECT FROM books_transactions WHERE borrowed_date

    MEMBER_ID IN ('A101', 'A102');

    Which statement is true about the outcome?

    A) It displays details only for members who have borrowed before today with RM as TRANSACTION_TYPE.

    B) It displays details for members who have borrowed before today's date with either RM as TRANSACTION_TYPE or MEMBER_ID as A101 and A102.

    C) It displays details for members who have borrowed before today with RM as TRANSACTION_TYPE and the details for members A101 or A102.

    D) It displays details for only members A101 and A102 who have borrowed before today with RM as TRANSACTION_TYPE.

    Answer:C

    (解析:该题的核心是考查大家对 and 与 or 两个逻辑操作符同时存在时的优先级顺序。其优先级顺序依次是: 所有比较操作符、 NO 、 AND 、 OR)

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  • 原文地址:https://www.cnblogs.com/cnblogs5359/p/10475673.html
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