NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
undo_management string AUTO
undo_retention integer 900
undo_tablespace string undotbs2
SQL> set linesize 150
SQL> col file_name for a56
SQL> select FILE_ID, FILE_NAME, TABLESPACE_NAME, BYTES/1024/1024 "MB", MAXBYTES/1024/1024/1024 "GB", AUTOEXTENSIBLE, STATUS, ONLINE_STATUS from dba_data_files;
FILE_ID FILE_NAME TABLESPACE_NAME MB GB AUT STATUS ONLINE_
---------- -------------------------------------------------------- ------------------------------ ---------- ---------- --- --------- -------
1 /u02/oracle/JINGYU/datafile/o1_mf_system_bwp198r7_.dbf SYSTEM 700 31.9999847 YES AVAILABLE SYSTEM
2 /u02/oracle/JINGYU/datafile/o1_mf_sysaux_bwp19hl8_.dbf SYSAUX 600 31.9999847 YES AVAILABLE ONLINE
4 /u02/oracle/JINGYU/datafile/o1_mf_undotbs2_bwqxbnxo_.dbf UNDOTBS2 100 31.9999847 YES AVAILABLE ONLINE
5 /u02/oracle/JINGYU/datafile/o1_mf_dbs_d_ji_bwp4r7cm_.dbf DBS_D_JINGYU 100 31.9999847 YES AVAILABLE ONLINE
最后，立即对当前恢复好的数据库做一个全备吧。