This strategy should not be a choice in an on-line transaction processing (OLTP) environment since roll-forwardrecovery is not possible. Figure 1 below illustrates circular logging.
该策略不应该用在线事务处理(on - line transaction processing, OLTP)环境,因为它不可能进行前滚恢复。
2
Quick's proven drill sequence also includes recovery strategies that assist in keeping the body in a forward focused lineon the water - not wavering from side to side.