Restore Limits
RMAN uses the recovery catalog--or target database control file if no recovery catalog is available--to select the best available backup sets for use in the restore operation. When multiple choices are available, RMAN uses the most current backup sets, taking into account whether you specified any limits.
Choose Restore from the most recent backup sets to have RMAN select the most current backup set to restore.
Choose Use backup set with specfied limits to limit the selection to those backup sets that would be suitable for performing a point-in-time recovery. The upper limit may be specified by date, SCN, or log sequence number.
Date
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specifies a time as an upper limit.
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System Change Number
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specifies an SCN as an upper limit.
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Log Sequence Number
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specifies a redo log sequence number as an upper limit.
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indicates the thread number for the redo log in question.
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