You must distinguish archived vs active log.If a log has been archived, meaning, it is no longer needed for crash recovery, in another word, it contains no uncommitted transactions.
1、dg的备份方式,对于DG的主库的归档日志的处理策略?一般是否会备库应用完之后,主库就删除归档(CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON STANDBY;),还是其他处理方式?备库的归档等内容是如何处理的? 答:一般是备库应用完之后,主库就可以删除归档了,也可以在备库多保留...