ORACLE 数据库RMAN备份恢复

机器A: select instance_name from v$instance; select name from v$database; select name from v$datafile; 查询日志模式： archive log list; shutdown immediate; startup mount; 把日志改为归档模式： alter database archivelog; alter database open; alter system archive log current; select name from v$archived_log; 打开控制文件跟踪： al