【第36题】【063题库】2019年OCP12c认证1Z0-063考试题库大全
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36题、Examine the command:
SQL>RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL;
In which two scenarios is this command required?
A. The current online redo log file is missing.
B. A data file belonging to a noncritical tablespace is missing.
C. All the control files are missing.
D. The database backup is older than the control file backup.
E. All the data files are missing.
Answer: A,C
(解析:整个 recover 命令做两件事:一个是要用到以前备份的控制文件进行恢复;一个是做不完全恢复。所以答案A 是需要做不完全恢复;答案 C 需要用到以前备份的控制文件)