rman怎么備份數(shù)據(jù)文件

這篇文章主要講解了“rman怎么備份數(shù)據(jù)文件”，文中的講解內容簡單清晰，易于學習與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學習“rman怎么備份數(shù)據(jù)文件”吧！

備份指定數(shù)據(jù)文件方法有兩種，指定數(shù)據(jù)文件和指定表空間

指定備份數(shù)據(jù)文件
RMAN> backup datafile 4;

Starting backup at 2017-07-30 13:09:40
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=18 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00004 name=/u01/app/oracle/oradata/test/users01.dbf
channel ORA_DISK_1: starting piece 1 at 2017-07-30 13:09:40
channel ORA_DISK_1: finished piece 1 at 2017-07-30 13:09:43
piece handle=/home/oracle/1asal8ck_1_1 tag=TAG20170730T130940 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 2017-07-30 13:09:43


備份表空間
備份表空間的時候其實就是在備份表空間下面的數(shù)據(jù)文件
RMAN> backup tablespace users;

Starting backup at 2017-07-30 13:10:30
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00004 name=/u01/app/oracle/oradata/test/users01.dbf
channel ORA_DISK_1: starting piece 1 at 2017-07-30 13:10:30
channel ORA_DISK_1: finished piece 1 at 2017-07-30 13:10:31
piece handle=/home/oracle/1bsal8e6_1_1 tag=TAG20170730T131030 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 2017-07-30 13:10:31

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