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An SCN for the entire database and different SCNs for datafiles?

resistanceIsFruitfulApr 19 2010 — edited Apr 19 2010

DB Version:11g

I always thought that there is one unique SCN for the entire database.
A quote from the link below like
After a checkpoint completes, Oracle stores the SCN individually in the control file for each datafile
http://www.dbapool.com/articles/1029200701.html

What does this mean? There is an SCN for the entire database and there are individual SCNs for each datafiles?

This post has been answered by Aman.... on Apr 19 2010

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