Understanding Oracle System Change Numbers and Their Role in Database Recovery
System Change Number (SCN) Fundamentals
The SCN (System Change Number) serves as Oracle's internal timestamp mechanism for tracking data base modifications. It represents a logical ordering point at which database changes occur, enabling the database to query and track modifications with precision.
Each transaction within Oracle follows a seque ...
Posted on Tue, 12 May 2026 23:03:21 +0000 by jumpfroggy