oracle丢失temp表空间的处理方法（oracle数据库参数文件备份）居然可以这样

99 0 0

之前有做临时表空间的切换，切换后没drop tablespace就删除了temp01.dbf结果排序跟查dba_temp_files报错

SQL> select tablespace_name,file_id,file_name,bytes/1024/1024 Mbytes from dba_temp_files;
select tablespace_name,file_id,file_name,bytes/1024/1024 Mbytes from dba_temp_files
*
ERROR at line 1:
ORA-01116: error in opening database file 201
ORA-01110: data file 201: ‘/home/oracle/oradata/osa/temp01.dbf’
ORA-27041: unable to open file
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3

两种方法可以恢复

1、重启数据库

重启后系统会自动重建，数据库会提示re-creating在bdump的alter_sid.log中

Re-creating tempfile /home/oracle/oradata/osa/temp01.db

2、重建

alter tablespace temp add tempfile ‘/oracle/oradata/osa/temp03.dbf’ size 50m;

alter tablespace temp drop tempfile ‘/oracle/oradata/osa/temp01.dbf’ ;

答案是系统会自动重建；

实验如下：

我们先查看Temp表空间对应的数据文件

SQL> select FILE_NAME,TABLESPACE_NAME,STATUS from dba_temp_files;

FILE_NAME TABLESPACE_NAME STATUS
—————————————- —————————————————————————————— ———————
/u01/oracle/oradata/orcl/temp01.dbf TEMP ONLINE