解决【ORA-00265: instance recovery required, cannot set ARCHIVELOG mode】

   在测试平台上想用rman备份全库 结果发现总是失败，需要启动归档模式，但是总是不成功，后面我做了一下操作，才可以了，遇到类似的朋友可以借鉴下。哈哈

SQL> archive log list;

Database log mode       No Archive Mode

Automatic archival       Disabled

Archive destination       USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence     10

Current log sequence       12

SQL> alter database archivelog;

alter database archivelog

*

ERROR at line 1:

ORA-00265: instance recovery required, cannot set ARCHIVELOG mode

SQL> alter database open;

Database altered.

SQL> shutdown immediate

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> SQL> SQL> startup nomount;

ORACLE instance started.

Total System Global Area  285212672 bytes

Fixed Size    1218992 bytes

Variable Size  104859216 bytes

Database Buffers  176160768 bytes

Redo Buffers    2973696 bytes

SQL> alter database mount;

Database altered.

SQL> alter database archivelog;

Database altered.

SQL>

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