ORA-01233: file string is read only – cannot recover using backup control file

文档解释

ORA-01233: file string is read only – cannot recover using backup control file

Cause: An attempt to do media recovery using a backup control file found that one of the files is marked read only. Read only files do not normally need to be recovered, but recovery with a backup control file must recover all online files.

Action: If the file really is read only, take it offline before the recovery, and bring the read only tablespace online after the database is open. If the file does need recovery use a control file from the time the file was read-write. If the correct control file is not available, use CREATE CONTROLFILE to make one.

这是 Oracle 数据库在恢复控制文件失败时报出的一个错误。它表明尝试恢复的数据库控制文件被锁定，因此数据库无法正常状态下恢复。

官方解释

ORA-0123:文件string是只读的-不能使用备份控制文件恢复

该错误提示将尝试从备份恢复控制文件块时发生了错误。因为文件被锁定为只读，因此恢复操作失败。

常见案例

此错误的常见原因是文件系统级权限问题，有时可能是文件本身受到损坏。同时，该错误也可能由 DB_CREATE_FILE_DEST参数设置错误引起，这将阻止创建文件。

正常处理方法及步骤

1.检查文件系统权限，确保可以写入到文件控制路径

2.检查 DB_CREATE_FILE_DEST 参数的值是否正确设置

3.检查当前是否存在损坏的文件

4.关闭所有和文件相关的进程

5.再次尝试从备份恢复数据库控制文件