RMAN不完全恢复的大致步骤
1. Mount the database. 加载数据库（目标数据库必须加载）
2. Allocate multiple channels for parallelization. 配置通道
3. Restore all datafiles. （备份文件必须由RMAN产生或注册）
4. Recover the database by using UNTIL TIME, UNTIL SEQUENCE, or UNTIL SCN.
5. Open the database by using RESETLOGS.
6. Perform a whole database backup.[@more@]RMAN不完全恢复的大致步骤
1. Mount the database. 加载数据库（目标数据库必须加载）
2. Allocate multiple channels for parallelization. 配置通道
3. Restore all datafiles. （备份文件必须由RMAN产生或注册）
4. Recover the database by using UNTIL TIME, UNTIL SEQUENCE, or UNTIL SCN.
5. Open the database by using RESETLOGS.
6. Perform a whole database backup.
二例子：基于时间或日志序列
RMAN> RUN {
2> ALLOCATE CHANNEL c1 TYPE DISK;
3> ALLOCATE CHANNEL c2 TYPE DISK;
4> SET UNTIL TIME = ‘2001-12-09:11:44:00';
5> RESTORE DATABASE;
6> RECOVER DATABASE;
7> ALTER DATABASE OPEN RESETLOGS; }
RMAN> RUN {
2> SET UNTIL SEQUENCE 120 THREAD 1;
3> ALTER DATABASE MOUNT;
4> RESTORE DATABASE;
5> RECOVER DATABASE; # recovers through log 119
6> ALTER DATABASE OPEN RESESTLOGS;
7> }