时间点恢复是指将数据更改恢复到指定时间点的过程。通常，这种类型的恢复是在还原一个完整备份后进行的，该备份将服务器还原到备份制作时的状态。（完整备份可以通过多种方式制作，例如在第 9.2 节，“数据库备份方法”中列出的方式。）然后，时间点恢复将服务器从完整备份的时间点增量更新到较近期的时间点。Point-in-time recovery refers to recovery of data changes up to a given point in time. Typically, this type of recovery is performed after restoring a full backup that brings the server to its state as of the time the backup was made. (The full backup can be made in several ways, such as those listed in Section 9.2, “Database Backup Methods”.) Point-in-time recovery then brings the server up to date incrementally from the time of the full backup to a more recent time.