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Given the following steps, which would be the correct order to create a backup of an Oracle database in NOARCHIVELOG mode?（） 1.shutdown immediate from RMAN 2.Log into RMAN 3.startup mount from RMAN 4.backup database 5.alter database open 6.backup database plus archivelog delete input
A:2，3，1，4，5
B:2，1，3，6，5
C:1，3，5，4
D:2，1，3，5，6
E:2，1，3，4，5

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出自：Oracle认证

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