ORA-01116: error in opening database file 7

ERROR at line 1:
ORA-01116: error in opening database file 7
ORA-01110: data file 7: '/u01/data/meihua01.dbf'
ORA-27041: unable to open file
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3

解决方案：
先离线删除数据库文件，然后再执行删除表操作！
SQL> alter database datafile 7 offline drop;
Database altered.
SQL> drop user kjfw cascade;
User dropped.

附：debugfs恢复方法
[oracle@appserver04 ~]$ df -h /u01/data
Filesystem                          Size  Used Avail Use% Mounted on
/dev/mapper/vg_appserver04-lv_root   99G   87G  6.6G  94% /
[oracle@appserver04 ~]$ debugfs
debugfs 1.41.12 (17-May-2010)
debugfs:  open /dev/mapper/vg_appserver04-lv_root
debugfs:  dump <12> /u01/data/hndzka01.dbf
debugfs:  quit