我错误地删除了数据文件。

Question

在我的生产服务器中，我错误地删除了数据文件。当我尝试打开数据库时出现错误。这些文件并不重要，但数据库没有打开。

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open
SQL>  alter database open RESETLOGS;
alter database open RESETLOGS
*
ERROR at line 1:
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/u01/mars/oradata/MARS/system01.dbf'

我尝试了很多方法来恢复，但它没有打开。喜欢

SQL> recover database until cancel;
ORA-00283: recovery session canceled due to errors
ORA-01610: recovery using the BACKUP CONTROLFILE option must be done

RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL ;
ORA-00283: recovery session canceled due to errors
ORA-01110: data file 5: '/u01/mars/oradata/MARS/example01.dbf'
ORA-01157: cannot identify/lock data file 5 - see DBWR trace file
ORA-01110: data file 5: '/u01/mars/oradata/MARS/example01.dbf'

Answer 1

由于您不关心数据，您可以尝试以下操作，这将脱机并删除有问题的数据文件，从而允许您打开数据库。

SQL> startup
ORACLE instance started.

Total System Global Area 1720328192 bytes
Fixed Size                  2255904 bytes
Variable Size            1275069408 bytes
Database Buffers          436207616 bytes
Redo Buffers                6795264 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file
ORA-01110: data file 6: 'C:\ORACLE\ORADATA\ORCL\TRASHED01.DBF'

SQL> alter database datafile 6 offline drop;

Database altered.

SQL> alter database open;

Database altered.

SQL>