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【2019年8月版本】OCP 071认证考试最新版本的考试原题-41-CUUG整理
OCP的071考试，在8月份左右全部换了新题，近期考试的题也全部不包括之前的题库了，这次oracle更新071考试题库，虽然全都是新题，但跟之前的相比也有关联，比如把之前的考题稍微变换一下数字、更新一下日期、或者再加一个错误选项等等。
对于2019年8月份的更新，我们CUUG已经进行了收集整理，并给出初步的答案和讲解，仅供参考，希望对考OCP 071认证的同学有帮助。
choose three
The ORDERS table has a primary key constraint on the ORDER_ID column.
The ORDER_ITEMS table has a foreign key constraint on the ORDER_ID column,referencing the primary key of the ORDERS table.
The constraint is defined with on DELETE CASCADE.
There are rows in the ORDERS table with an ORDER_TOTAL less than 1000.
Which three DELETE statements execute successfully?
A) DELETE FROM orders WHERE order_total<1000;
B) DELETE * FROM orders WHERE order_total<1000;
C) DELETE orders WHERE order_total<1000;
D) DELETE FROM orders;
E) DELETE order_id FROM orders WHERE order_total<1000;
Answer：ACD
(解析：这个考的是语法题，属于低智商题目，因为定义外键的时候用了 DELETE CASCADE 选项，所以父表的行是可以删除。)