Starting & stopping Managed Recovery (Standby):

Starting & stopping Managed Recovery (Standby):
start
STARTUP MOUNT;
alter database recover managed standby database using current logfile disconnect from session; -- Applies not only completed redo logs, but also redo log currently being copied
or
alter database recover managed standby database disconnect from session; -- Applies completed redo logs

stop
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
SHUTDOWN IMMEDIATE;

Monitoring:

SELECT PROCESS, STATUS, THREAD#, SEQUENCE#, BLOCK#, BLOCKS FROM V$MANAGED_STANDBY;