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Question
what is difference between user managed  backup and rman backup?
 Question Submitted By :: Skr
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is difference between user managed backup and rman backup?
Answer
# 1
1.To take both the bkp the db should be in Archive log
2.Rman doesn't put tablespace in bkp mode.
3.the biggest advantage of Rman is that it takes the bkp of the used space/blocks of database.where user managed bkp takes the bkp of complete data file.
4.Rman will automatically detect block corruption,which is not possible in Hot bkp.
5.In Rman we can take incremental bkp,which is not possible in User managed bkp.
6.Rman is FRA aware.We can perform table space point in time recovery,as block change tracking also which is not possible in user managed backup.
7.Most importantly,Rman will re-read the data block until it gets the consistent image of it.
 
Is This Answer Correct ?    12 Yes 2 No
Iliyas Ali
 

 
 
 
Other DB Administration Interview Questions
 
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what is rebuild index?? Sapient 2
How do you resize a data file?   2
What command would you use to encrypt a PL/SQL application?   1
What is the difference between Datapump & export/import?   1
what is the differnce between process and thread ? IBM 1
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You have just had to restore from backup and do not have any control files. How would you go about bringing up this database?   3
How would you begin to troubleshoot an ORA-3113 error?   1
Explain how you would restore a database using RMAN to Point in Time?   1
Give two examples of referential integrity constraints.   2
i had backup last manday.now i need back monday to now ..how do get backup? Wipro 3
deleted of control file how will u recover control file? CTS 4
 
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