数据库闪回

–闪回到15分钟前 ：
select * from 表名 as of timestamp (systimestamp - interval ‘15’ minute);

–创建备份表
create table 备份表名 as select * from 表名 as of timestamp (systimestamp - interval ‘15’ minute);

–将备份数据插入主表
delete from 表名;
insert into 表名 (select * from 备份表名);
commit;

详情：https://www.cnblogs.com/rangle/p/8039282.html