差异数据库备份和恢复是为了增加还原数据库的准确性。
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差异备份策略一般是在完整数据库备份上、且数据变化比较小的数据库上,该类备份可以节省数据库备份的时间
A. 对
B. 错
简单恢复,数据只能恢复到最近的完整备份或差异备份。并备份事务日志,且使用的事务日志空间最小。
A. 对
B. 错
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