2同行回答
这个通过rman指定就行了，level=1 只有是1或者更高都是增量备份
比如，下面是个nbu备份Oracle的增量脚本：
RUN {
ALLOCATE CHANNEL ch00 TYPE 'SBT_TAPE' PARMS 'SBT_LIBRARY=/usr/openv/netbackup/bin/libobk.so64';
ALLOCATE CHANNEL ch01 TYPE 'SBT_TAPE' PARMS 'SBT_LIBRARY=/usr/openv/netbackup/bin/libobk.so64';
SEND 'NB_ORA_SERV=master.wangql.local,NB_ORA_CLIENT=rhel64,NB_ORA_POLICY=oracle_db_script';
BACKUP
INCREMENTAL LEVEL=1
SKIP INACCESSIBLE
TAG hot_db_bk_inc_lvl0
FILESPERSET 5
# recommended format, must end with %t
FORMAT 'bk_%s_%p_%t'
DATABASE;
sql 'alter system archive log current';RELEASE CHANNEL ch00;
RELEASE CHANNEL ch01;
}