11. Study the output of running the block in Step 8. In particular, note these points:
• Two channels were used, to parallelize the operation.
• The date given must conform to that specified by the NLS_DATE_FORMAT
environment variable.
• The restore will have been from the most recent backup earlier than the
UNTIL time.
• The recovery uses a combination of archive logs on disk, and archive logs
extracted from a backup set.
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