RMAN的持久性配置设置具有所有参数的默认设置。 确定产生多部分备份的四个RMAN命令？ CEFG A、BACKUP ARCHIVELOG ALL SECTION SIZE 25M; B、BACKUP SPFILE SECTION SIZE 1M; C、BACKUP AS COPY TABLESPACE SYSTEM SECTION SIZE 100M; D、BACKUP TABLESPACE "TEMP" SECTION SIZE 10M; E、BACKUP TABLESPACE SYSTEM SECTION SIZE 100M; F、BACKUP INCREMENTAL LEVEL 0 TABLESPACE SYSAUX SECTION SIZE 100M; G、BACKUP TABLESPACE "UNDO" INCLUDE CURRENT CONTROLFILE SECTION SIZE 100M;