The second restores to the most recent state, using a combination of full backupplus rolling forward the transaction log, called rollforward recovery.
另一种机制通过使用全备份，并前滚事务日志，使数据库恢复到最近的状态，这种机制也叫前滚恢复。
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Although many of these storage media have high capacity, a backup tool with compression capabilities is a big plus, eliminating the inconvenience of multiple disks or large uploads.