控制文件丢失：

1. alter database backup controlfile to traces;
2. shutdown immediate;
3. @j:\db\script\orcl_ora_ctl_bak (J:\oracle\product\10.2.0\admin\orcl\udump\orcl_ora_3028.trc)

日志文件丢失：

1. recover database until cancel;
2. alter database open resetlogs;