RMAN-05556：not all datafiles have backups that can be recovered to SCN string
错误码
错误描述：not all datafiles have backups that can be recovered to SCN string
错误原因：One or more data files being duplicated could not be restored as no available backups were found.
解决方法：Change the system change number (SCN) or make backups available for the specified data files and retry the command.
向认证技术专家提问
向技术专家提问
