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SCN,Log sequence number
Hi
what is SCN(system change number),log sequence number.....
how it is useful.....
wt they do...
Thanks and Regards.
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Pablo (Paul) Berzukov
Author of Understanding Database Administration available at amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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Concern what about parv say.
Scn (system change number)—WHAN a transaction is committed a SCN number is generate.
Log sequence number –when a log switch occur than a log sequence number is generated.
Now u ask what the log switch??
So please read the chapter REDO LOG FILE from any oracle 8i,9i,10g database book.
Its easy for u .
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