0级备份和全备

Full bakcup_        @6fd X.M(o
is a backup of a datafile that includes every allocated block in the file being backed up. A full backup of a datafile can be an image copy, in which case every data block is backed up. It can also be stored in a backup set, in which case datafile blocks not in use may be skipped, according to rules in Oracle Database Backup and Recovery Reference.space.itpub.net9i        h0WKX1U6Zn

8s
p^ i:OY~+koracle,db2,sqlserver,sybase,mysql,erp,scm,sap,java,.netA full backup cannot be part of an incremental backup strategy; that is, it cannot be the parent for a subsequent incremental backup.
VU;}N2a1I#g/vWITPUB个人空间 7Q;`Ee.Eke
Incremental
7W2j'f.|O,cITPUB个人空间 An incremental backup is either a level 0 backup, which includes every block in the file except blocks compressed out because they have never been used, or a level 1 backup, which includes only those blocks that have been changed since the parent backup was taken.(~T0tqb
space.itpub.net%PcD
@2U+PV
d
A level 0 incremental backup is physically identical to a full backup. The only difference is that the level 0 backup is recorded as an incremental backup in the RMAN repository, so it can be used as the parent for a level 1 backup.:TW2wN}
m4uc        v)K@L