dataguard 增量恢复

主备份增量数据和控制文件：

backup as compressed backupset incremental from scn 142237796 database format '/home/oracle/rman_backup/inc_%u.bak' ;
backup current controlfile for standby format '/home/oracle/rman_backup/standby_ctl.bak';

恢复控制文件并注册备份集：

shutdown immediate;
startup nomount;
restore standby controlfile from '/tmp/rman_bak/standby_ctl.bak';

使用增量recover备库
alter database mount;
catalog start with '/tmp/rman_bak';
RMAN> recover database noredo;