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doubt about CURRENT LOG SEQUENCE NUMBER

721236Jul 14 2010 — edited Jul 14 2010

I just want to know that why the "current log sequence number" is added to the header of each data file ? why oracle needs to do that ? as it is also added to the control file and whenever it needs to know the current log sequence number , it can get it from control file , then why to add this in the header of data files ?

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Locked on Aug 11 2010

Added on Jul 14 2010

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