備份數據庫數據文件
> rman
RMAN> connect target /
RMAN> backup database;
RMAN> backup current controlfile spfile;
恢復庫，需在mount下執行 或者 先把數據文件offline
SQL> startup mount
> rman target /
RMAN> restore database;
SQL> recover database;
恢復控制文件，nomount下執行
RMAN> restore controlfile;
查看備份
RMAN> list backup;
查看數據庫表空間：
RMAN> report schema;
備份錯誤解決
ORA-19809: limit exceeded for recovery files
ORA-19804: cannot reclaim 52428800 bytes disk space from 2147483648 limit
SQL> show parameter db_recover
SQL> alter system set db_recovery_file_dest_size='10G';