ORACLE数据库 DBF数据恢复 oracle的dbf误删恢复

【准备】完全一致：两个系统的数据库版本的版本、数据名sid、实例名、路径和数据库编码完全一致。

【监听器】修改listener.ora的参数

SID_LIST_LISTENER =
 (SID_LIST =
 (SID_DESC =
 (SID_NAME = PLSExtProc)
 (ORACLE_HOME = D:\oracle\product\10.1.0\db_1)
 (PROGRAM = extproc)
 )
 (SID_DESC =
 (GLOBAL_DBNAME = orcl) //如果已经有这个orcl了，这个文件就不用修改
 (ORACLE_HOME = D:\oracle\product\10.1.0\db_1) //这里要根据你的实际路径来
 (SID_NAME = orcl)
 )
 )
LISTENER =
 (DESCRIPTION_LIST =
 (DESCRIPTION =
 (ADDRESS_LIST =
 (ADDRESS = (PROTOCOL = TCP)(HOST = lypch )(PORT = 1521))
 )
 (ADDRESS_LIST =
 (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
 )
 )
 )

【本地服务名】修改tnsnames.ora的参数

AMMICLY =
 (DESCRIPTION =
 (ADDRESS = (PROTOCOL = TCP)(HOST = lypch )(PORT = 1521))
 (CONNECT_DATA =
 (SERVER = DEDICATED)
 (SERVICE_NAME = orcl)
 (UR=A) //参数允许只进行管理性的连接，数据库nomount,mount或者restricted时，动态监听显示状态为BLOCKED时，客户端配置UR=A进行连接。
 )
 )
EXTPROC_CONNECTION_DATA =
 (DESCRIPTION =
 (ADDRESS_LIST =
 (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
 )
 (CONNECT_DATA =
 (SID = PLSExtProc)
 (PRESENTATION = RO)
 )
 )

【DBF拷贝】SQL>shutdown immediate 停止服务，将新安装的oracle的dbf备份后删除，将原dbf拷贝到新安装的目录下F:\app\toshiba\oradata\orcl

【覆盖】原oracle库主目录下的FLASH_RECOVERY_AREA目录全部覆盖到新安装的oracle对应目录下

【重启】SQL>startup 再次启动服务

【完成】END