15. þ A and C. A RESETLOGS generates a new database incarnation number
and returns the log sequence number to zero.
ý B, D, E, and F. The SCN continues to increment following a RESET
LOGS, and the DBID remains the same. The instance number is not relevant.
Previous backups and archive logs will still be usable (though this was not the
case with releases prior to 10g).
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