oracle下的奇怪文件？

Question

check properly :select file_name ,tablespace_name,bytes,blocks,status from dba_data_files                                

Answer 1

mv xxx.dat xxx.dat.bak
试一下

Answer 2

列表中有！
怎么去掉？
TABLESPACE_NAME                     BYTES     BLOCKS STATUS
------------------------------ ---------- ---------- ---------
/oradisk/oracle/app/oracle/oradata/ems/system01.dbf
SYSTEM                          183500800      11200 AVAILABLE/oradisk/oracle/app/oracle/oradata/ems/oemrep01.dbf
OEM_REPOSITORY                    5242880        320 AVAILABLE/oradisk/oracle/app/oracle/oradata/ems/rbs01.dbf
RBS                              12582912        768 AVAILABLE
FILE_NAME
--------------------------------------------------------------------------------
TABLESPACE_NAME                     BYTES     BLOCKS STATUS
------------------------------ ---------- ---------- ---------
/oradisk/oracle/app/oracle/oradata/ems/temp01.dbf
TEMP                             12845056        784 AVAILABLE/oradisk/oracle/app/oracle/oradata/ems/users01.dbf
USERS                          5253038080     320620 AVAILABLE/oradisk/oracle/app/oracle/oradata/ems/indx01.dbf
INDX                             10485760        640 AVAILABLE
FILE_NAME
--------------------------------------------------------------------------------
TABLESPACE_NAME                     BYTES     BLOCKS STATUS
------------------------------ ---------- ---------- ---------
/oradisk/oracle/tabspace/datafile1.dat
EMS_TB_SP                      1048576000      64000 AVAILABLE/oradisk/oracle/tabspace/rollbk.dat
ROLLBACK                         52428800       3200 AVAILABLE/oradisk/oracle/tabspace/EMS_RB.data
RB_EMS                           52428800       3200 AVAILABLE
9 rows selected.

Answer 3

搞定了！！！
多谢sun9989(一品黄山)