【2019年8月版本】Oracle OCP认证 071考试原题-57
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我要咨询【2019年8月版本】OCP 071认证考试最新版本的考试原题-57-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 two
Examine the description of the BOOKS table:
Name Null? Type
-------------------------------------------------------------
TRANSACTION_ID NOT NULL VARCHAR2(6)
TRANSACTION_ DATE DATE
AMOUNT NUMBER(10,2)
CUSTOMER_ID VARCHAR2(6)
The table has 100 rows
Examine this sequence of statements issued in a new session:
INSERT INTO books VALUES ('ADV12','Adventures of Tom Sawyer',NULL,NULL);
SAVEPOINT a;
DELETE FROM books;
ROLLBACK TO SAVEPOINT a;
ROLLBACK;
Which two statements are true?
A) The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row.
B) The first ROLLBACK command restores the 101 rows that were deleted ,leaving the inserted row still to be commited.
C) The second ROLLBACK command does nothing.
D) the second ROLLBACK undoes the insert.
E) The second ROLLBACK command replays the delete.
Answer：BD
(解析：这道题注意回滚的范围。)
