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Upon starting your database, you receive the following error: SQL> startup ORACLE instance started. Total System Global Area 171581440 bytes Fixed Size 1298640 bytes Variable Size 146804528 bytes Database Buffers 20971520 bytes Redo Buffers 2506752 bytes Database mounted. ORA-00313: open failed for members of log group 1 of thread 1 ORA-00312: online log 1 thread 1: '/oracle01/oradata/orcl/redo01.log' ORA-00312: online log 1 thread 1: '/oracle01/oradata/orcl/redo01a.log' You can choose from the following steps: a: Restore the database datafiles. b: Issue the alter database clear unarchived logfile group 1 command. c: Issue the alter database open command. d: Issue the alter database open resetlogs command. e: Recover the database using point-in-time recovery. f: Issue the Startup Mount command to mount the database. g: Back up the database. Which is the correct order of these steps in this case?
Correct Answer: C
Explanation/Reference: Explanation: 1. one step of process must be ALTER DATABASE OPEN, since the database instance is started and mounted from clean shutdown. 2. After redo log clear done, you must backup the database immediately, so that you have a backup you can use for complete recovery without relying on the cleared log group.