https://community.oracle.com/docs/DOC-1013469
http://houseofbrick.com/fast-xtts-with-cross-platform-incremental-backup-part-2/
http://www.dummies.com/programming/databases/sql-for-dummies-cheat-sheet/
http://www.toadworld.com/platforms/oracle/w/wiki/11124.fast-incremental-backups-active-data-guard
http://oraclestorageguy.typepad.com/oraclestorageguy/2010/05/data-domain-rman-incremental-backup-saves-space-and-time.html
http://www.beyondoracle.com/2008/11/24/fast_incremental_backups/
原文：http://www.cnblogs.com/joewan/p/7583617.html