Oracle数据库报错：ORA-00265

SQL> alter database archivelog;
alter database archivelog
*
ERROR at line 1:
ORA-00265: instance recovery required, cannot set ARCHIVELOG mode

--实例错误，需要先打开数据库，让数据文件、控制文件、redo log日志同步后再切换归档
SQL> alter database open;

Database altered.

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.

Total System Global Area 918618112 bytes
Fixed Size 2258640 bytes
Variable Size 549456176 bytes
Database Buffers 360710144 bytes
Redo Buffers 6193152 bytes
Database mounted.
SQL> alter database archivelog;

Database altered.

SQL> alter database open;

Database altered.

SQL>

原文地址：https://blog.51cto.com/ssunandmoon/2410406