--为归档日志文件设置一个合适的实况克隆格式

ALTER SYSTEM SET log_archive_format = log_%s_%t_%r.arc SCOPE=SPFILE;

--设置新的云服务器DB_UNIQUE_NAME参数，亿华云计算它不能动态修改

ALTER SYSTEM SET db_unique_name = orcl SCOPE=SPFILE;

SHUTDOWN IMMEDIATE;

STARTUP MOUNT;

ALTER DATABASE FORCE LOGGING;

ALTER DATABASE ARCHIVELOG;