【优技教育】Oracle 19c OCP 082题库(Q 19题)- 2024年修正版
考试科目：1Z0-082
考试题量：90
通过分数：60%
考试时间：150min
本文为(CUUG 原创)整理并解析，转发请注明出处，禁止抄袭及未经注明出处的转载。
第19题：
Q 19、
Choose two
Which two are true about rollbacks?
A) The ROLLBACK statement does not release locks resulting from table updates.
B) A transaction interrupted by a system failure is automatically rolled back.
C) Data Control Language (DCL) statements, such as GRANT and REVOKE, can be rolled back.
D) If the ROLLBACK statement is used without TO SAVEPOINT, then all savepoints in the transaction are deleted
E) Data consistency is not guaranteed after a rollback.
Answer：BD
(解析：该题是回滚的考点，事务的完成有提交和回滚，不管哪个，都会释放锁，该考点不难，即使第一次出现，自己应该也能够判断出来。)
Oracle 19c OCP认证需要到Oracle指定的WDP机构，有了培训记录之后才能考试，考试需要考2科，分别是082(60%及格)和083(57%及格)，两科都通过之后才能拿到证书。证书如下：
