1、差异性增量备份
backup incremental level 0 database format ‘c:\rman\L0_%U.bak’;
backup incremental level 1 database format ‘c:\rman\L1C_%U.bak’;
2、累积性增量备份
backup incremental level 0 database format ‘c:\rman\L0_%U.bak’;
backup incremental level 1 cumulative database format ‘c:\rman\L1C_%U.bak’;
Note：差异性备份是同一级别不备份，而累积性备份是同一级别的也备份
备份的级别可以为0、1、2、3、4
3、启用/关闭oracle块更改跟踪
开启
alter database enable block change tracking using file
‘c:\oracle\product\10.2.0\admin\orcl\bdump\block_trace.txt‘
关闭
alter database disable block change tracking;