查看进程的活动状况—v$managed_standby
select process,client_process,sequence#,status from v$managed_standby;
PROCESS列显示进程信息
CLIENT_PROCESS列显示对应的主数据库中的进程
SEQUENCE#列显示归档redo的序列号
STATUS列显示的进程状态
确认redo应用进度—v$archive_dest_status
select dest_name,archived_thread#,archived_seq#,applied_thread#,recovery_mode, applied_seq#,db_unique_name from v$archive_dest_status where status=’VALID’;
检查归档文件路径及创建信息—v$archived_log
select name,creator,sequence#,applied,completion_time from v$archived_log;
select dest_id,max(sequence#) from v$archived_log group by dest_id;
查询归档历史—v$log_history
查询当前数据的基本信息—v$database信息
Data guard事件—v$dataguard_status
select message from v$dataguard_status;