Since the redo log group is inactive and is archived, just clear the redo log - alter database clear logfile groupN (where N is the group # of the lost redo log)
由于重做日志组是不活动和归档的，所以只需清除重做日志即可 —— alter database clear logfile group N（其中 N 是丢失的重做日志的组 #）。
2
Many Chinese restaurants are telling people to order dishes by using the "N-1" formula."N" stands for the number of people in your group.
许多中餐馆告诉人们用“N-1”公式点菜。“N”代表你们的人数。
3
Restaurants in Wuhan have begun the N-l system, which means groups of customers are supposed to order one fewer dish than the number of people in the group.