1) If I resize or added a datafile in Primary, but in DR there is no space to get added same size, what is the fix?
https://www.forum.dbagenesis.com/forum/oracle-database-administration/adding-datafiles-on-primary-when-you-don-t-have-sufficient-space-left-on-standby-database
https://gavinsoorma.com/2009/06/resize-standby-datafile-if-disk-runs-out-of-space/
https://rajeevjhaoracle.wordpress.com/2012/11/01/unnamed-file-error-in-standby-after-adding-new-file-to-primary-database-ora-01111-ora-01110-ora-01157/
2) What is archive_lag_target ?
3) Real Time Apply ?
4) How to check archive log gap ?
5) which process will ship the redos/archives from primary to standby ? NSA
6) How to use standby backup to rrestore a primary db ?
7)
test
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