表空间数据文件移动或改名操作
sqlplus /nolog
SQL> conn /as sysdba
SQL> alter tablespace <tablespace name> offline;
SQL> host mv <old file name> <new file name>
SQL> alter tablespace <tablespace name> rename datafile '<old file name>' to '<new file name>';
SQL> alter tablespace <tablespace name> online;
SQL> exit
