处理ORA-10458，ORA-01111，ORA-01110报警
备库启动时出现以下异常：
SQL> startup
ORACLE instance started.
Total System Global Area 3206836224 bytes
Fixed Size 2257520 bytes
Variable Size 1811942800 bytes
Database Buffers 1375731712 bytes
Redo Buffers 16904192 bytes
Database mounted.
ORA-10458: standby database requires recovery
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file
ORA-01111: name for data file 6 is unknown - rename to correct file
ORA-01110: data file 6: '/u01/app/oracle/product/11.2.0/db_1/dbs/UNN
AMED00006'
报警文件：
Managed Standby Recovery starting Real Time Apply
Standby Crash Recovery aborted due to error 1111.
Errors in file /u01/app/oracle/diag/rdbms/orcl151/orcl151/trace/orcl151_ora_3931.trc:
ORA-01111: name for data file 6 is unknown - rename to correct file
ORA-01110: data file 6: '/u01/app/oracle/product/11.2.0/db_1/dbs/UNNAMED00006'
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file
ORA-01111: name for data file 6 is unknown - rename to correct file
ORA-01110: data file 6: '/u01/app/oracle/product/11.2.0/db_1/dbs/UNNAMED00006'
Completed Standby Crash Recovery.
Errors in file /u01/app/oracle/diag/rdbms/orcl151/orcl151/trace/orcl151_ora_3931.trc:
ORA-10458: standby database requires recovery
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file
ORA-01111: name for data file 6 is unknown - rename to correct file
ORA-01110: data file 6: '/u01/app/oracle/product/11.2.0/db_1/dbs/UNNAMED00006'
ORA-10458 signalled during: ALTER DATABASE OPEN...
ARC3: Archival started
ARC0: STARTING ARCH PROCESSES COMPLETE
故障排除：
备库检查是否需要恢复文件
SQL> select * from v$recover_file where error like '%FILE%';
主库确认数据文件
识别在（备库）中创建的虚拟文件名
