Why cant the controlfile be synchronized, when you use the backup controlfile

Hi all

I understand a little... .to leave a DBA of my friends...

you need a resetlog to synchronize the data file headers and the controlfiles

(1) you need a resetlog when you perform incomplete recovery
(2) you can complete recovery using a backup controlfile as long as you have all the necessary archived logs and online redo logs.
(3) but not to do resetlog after 2), you must re-create the controlfile

my questions are

T1) are the next point above true?

(* q2) why update slope the controlfile to oracle during recovery using backup controlfile? in this case, I do not need to recreate a controlfile, isn't?


Rgds,
Noob

user12050668 wrote:
Hi Alex and the guys,.

Thanks for comfirming my questions.
I wonder what...

-resetlog was designed to synchronize the control and the data headers file isn't it?
-When I get back, even if I am using backup controlfile, I'm actually synchronization data is not?

Yes it's true. But also during resetlogs you get new redologs and PAPER SEQUENCE NUMBER will be 1 and the database will has new incarnation.

so, the only reason why I need resetlog even if I finished syncing correctly to the point of failure, is simply because I am using a BACKUP controlfile?.

Yes quite right.

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