OCP考试第3题

Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains one redo member. When you attempt to start the database, you receive the following errors:

数据库为archive模式，有2个redo group,每组一个成员，启动数据库报错：

ORA-00313: open failed for members of log group 1 of thread 1 ORA-00312: online log 1 thread 1: 'D:\REDO01.LOG'

You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue?

打开1个redo log失败，发现当前日志损坏了，将用什么方法解决这个问题？

A. ALTER DATABASE DROP LOGFILE GROUP 1;

删除不了，提示需要恢复了。

B. ALTER DATABASE CLEAR LOGFILE GROUP 1;

同样报错，提示需要恢复。

C. ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;

提示需要恢复。

D. ALTER DATABASE DROP LOGFILE MEMBER 'D:\REDO01.LOG';

提示不能删除最后一个member.

所以没有正确答案。