RMAN restore UNTIL SCN in DATA GUARD environment

Question

Hello,
OS=RHL5
DB=11.2.0.3 Primary and 1 Physical STANDBY database.
I have a huge application changes tomorrow and its possible that I have the requirement to ROLLBACK the database 5 hours back because the application.
I am thinking to adopt following method from the official Oracle documentation (untilClause):
STARTUP FORCE MOUNT
RUN
  SET UNTIL SCN 1418901;  ## Any required SCN number will be used here.
  RESTORE DATABASE;
  RECOVER DATABASE;
ALTER DATABASE OPEN RESETLOGS;
I will of course take LEVEL0 backup tonight and LEVEL1 backup before the start of work.
My humble question to you is that: If this is the correct method I am adopting? and if yes, then what about Physical standby database? Will there something to restore/recover too? or it's not required or standby database need to create again (which I am afraid of)?
Flash back is not enabled.
Bundle of thanks for the suggestion.
Best Regards

Answer 1

hello John-MK,
My humble question to you is that: If this is the correct method I am adopting?
the method is  correct but not the BEST PRACTICE...create a RESTORE POINT instead of using SCN. for example:
SET UNTIL RESTORE POINT before_app_changes;
1. drawbacks of using flashback feature are:
a. you need more disk space
b. there is CPU overhead associated with flashback log operation
c.compulsorily need to use fast recovery area and you can not backup flashback log
d.others..
but my own opinion, i think the advantage out weight the drawbacks, since you are paying for it already
2.  if the standby database did not apply redo data past the new resetlogs SCN, then you do not need to re-build. no manual intervention
HTH
Tobi