1.首先百度了下，重装系统之后怎么恢复Oracle数据库，看到一篇博客比较好弄，于是参照这篇博客来点击打开链接
2.重启电脑之后，连接不上。查找几个重要的路径
Oracle日志文件记录位置
F:\app\chengdu\diag\rdbms\orcl\orcl\trace\alert_orcl.log
F:\app\chengdu\product\11.2.0\dbhome_1\dbs\init.ora
F:\app\chengdu\admin\orcl\pfile\init.ora.172018115615
F:\app\chengdu\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
F:\app\chengdu\product\11.2.0\dbhome_1\NETWORK\ADMIN\sqlnet.ora
F:\app\chengdu\product\11.2.0\dbhome_1\NETWORK\ADMIN\tnsnames.ora
查看Oracle表空间文件位置
select t1.name,t2.name from v$tablespace t1,v$datafile t2 where t1.ts# = t2.ts#;
H:\APP\CHENGDU\ORADATA\ORCL\SYSTEM01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\SYSAUX01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\UNDOTBS01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\USERS01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\EXAMPLE01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\GZF_SOAR_DATA01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\GZF_SOAR_INDEX_DATA01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\GZF_COMMON_DATA01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\GZF_COMMON_INDEX_DATA01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\GZF_ZFBZ_DATA01.DBF
H:\APP\CHENGDU\ORADATA\ORCL\GZF_ZFBZ_INDEX_DATA01.DBF
修该表空间位置
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\SYSTEM01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\SYSTEM01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\SYSAUX01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\SYSAUX01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\UNDOTBS01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\UNDOTBS01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\USERS01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\USERS01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\EXAMPLE01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\EXAMPLE01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\GZF_SOAR_DATA01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\GZF_SOAR_DATA01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\GZF_SOAR_INDEX_DATA01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\GZF_SOAR_INDEX_DATA01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\GZF_COMMON_DATA01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\GZF_COMMON_DATA01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\GZF_COMMON_INDEX_DATA01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\GZF_COMMON_INDEX_DATA01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\GZF_ZFBZ_DATA01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\GZF_ZFBZ_DATA01.DBF';
alter database rename file 'H:\APP\CHENGDU\ORADATA\ORCL\GZF_ZFBZ_INDEX_DATA01.DBF' to 'F:\APP\CHENGDU\ORADATA\ORCL\GZF_ZFBZ_INDEX_DATA01.DBF';
修改几个重要位置就OKay了