Encyclopedia tables can be backed up in such a way that read consistency is guaranteed, but application of logs is not possible or not intended. For example, Oracle export can accomplish this. Recovery from this type of backup can be made only to the point at which the encyclopedia table backups were taken. Such a backup strategy is ideal for sites where the databases are updated only during say an 8 a.m. to 8 p.m. workday and backups are scheduled for nights. In such a case, no update logs would be expected after a certain hour, so risk of possible data loss during recovery would be low.
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