【Oracle】ORA-01157: cannot identify/lock data file 201 - see DBWR trace file

今天数据库在查询数据的时候显示了这个错误：

ORA-01157: cannot identify/lock data file 201 - see DBWR trace file ORA-01110: data file 201: '/u01/app/oracle/oradata/ORA11GR2/temp01.dbf'

---查看临时表空间 SYS@GOOD> select FILE_NAME, TABLESPACE_NAME from dba_temp_files; select FILE_NAME, TABLESPACE_NAME from dba_temp_files * ERROR at line 1: ORA-01157: cannot identify/lock data file 201 - see DBWR trace file ORA-01110: data file 201: '/u01/app/oracle/oradata/ORA11GR2/temp01.dbf'

很明显这是我的临时表空间数据文件丢失了，导致不能查看数据文件

解决办法：

---删除文件 SYS@GOOD> alter database tempfile '/u01/app/oracle/oradata/ORA11GR2/temp01.dbf'drop; Database altered. ---重建文件 SYS@GOOD> alter tablespace temp add tempfile'/u01/app/oracle/oradata/GOOD/temp01.dbf'size 100M; Tablespace altered. ---验证文件 SYS@GOOD> select file_name,tablespace_name from dba_temp_files; FILE_NAME TABLESPACE_NAME ---------------------------------------------- ------- /u01/app/oracle/oradata/GOOD/temp01.dbf TEMP