求助 oracle打开后，执行查询语句出现

ALLSTARS_ORACLE

ora-03113 通信通道的文件结束错误

贴一下alert文件
SMON: slave died unexpectedly, downgrading to serial recovery
Mon Nov 17 17:22:47 2014
Errors in file e:\oracle\product\10.2.0\admin\smart\bdump\smart_pmon_6784.trc:
ORA-00474: SMON 进程因错误而终止

Mon Nov 17 17:22:49 2014
PMON: terminating instance due to error 474
Mon Nov 17 17:22:51 2014
Errors in file e:\oracle\product\10.2.0\admin\smart\bdump\smart_dbw0_7344.trc:
ORA-00474: SMON 进程因错误而终止

Mon Nov 17 17:22:53 2014
Errors in file e:\oracle\product\10.2.0\admin\smart\bdump\smart_dbw1_900.trc:
ORA-00474: SMON 进程因错误而终止

Mon Nov 17 17:22:54 2014
Errors in file e:\oracle\product\10.2.0\admin\smart\bdump\smart_lgwr_1040.trc:
ORA-00474: SMON 进程因错误而终止

Mon Nov 17 17:22:56 2014
Errors in file e:\oracle\product\10.2.0\admin\smart\bdump\smart_q001_6596.trc:
ORA-00474: SMON 进程因错误而终止