做一个控制文件备份
1,数据库关闭
2,把文件删除
3,启动数据库失败
4,启动数据库再mount状态
startup mount
5, recover database until cancel;
6,
alter database create datafile 14 as 'C:\ORACLE\ORADATA\XUXIN9I\PAR1.ORA';
7,recover database until cancel;
8,alter database open noresetlogs;