I look RMAN document and have some confuse about "full backup" and "incremental backup 0". Book say "full backup and incremental level 0 backup all blocks containing data" It also say "full backup can NOT be used in an incremental backup strategy". My questions are: 1. which RMAN command for "full baclup" and which command for "incremental level 0 backup"? 2. If "full backup" can NOT use on incremental strategy, what purpose for "full backup"? 3. Ramn command "backup database plus archivelog" is "full backup" or "incremental level 0 backup"? Thanks. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- //www.freelists.org/webpage/oracle-l