测试数据库shutdown abort，再startup报了一个redo log错误
 
首先
startup mount;
 
select * from v$log;  查看报错的redo log发现是当前的活动日志
尝试Oracle的隐含参数来试试
alter system set "_allow_resetlogs_corruption"=true scope=spfile;

shutdown immediate;

startup mount;

recover database using backup controlfile until cancel;

alter database open resetlogs;

shutdown immediate;

startup;顺利开启，运气不错