小弟初学者，请教各位高手，我查询表的时候提示ORA-00376,ORA-01110错误。
ORA-00376:file 28 cannot be read at this time
ORA-01110:data file 28:'/home/oracle/oradatea/AAA/D_ACCAUD.dbf'
执行SQL> select file#,status from v$datafile;
显示
FILE# STATUS
---------- --------------
23 ONLINE
24 ONLINE
25 ONLINE
26 ONLINE
27 ONLINE
28 RECOVER
29 ONLINE
30 ONLINE
SQL> recover datafile 28;
ORA-00283: recovery session canceled due to errors
ORA-01110: data file 28: '/home/oracle/oradata/AAA/D_ACCAUD.dbf'
ORA-01157: cannot identify/lock data file 28 - see DBWR trace file
ORA-01110: data file 28: '/home/oracle/oradata/AAA/D_ACCAUD.dbf'
请教各位高手这是个什么错误，如何解决呢？
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