1、
備庫sqlplus>select value from v$dataguard_stats where name='apply lag'

2、
備庫sqlplus>select ceil((sysdate-next_time)*24*60) "M" from v$archived_log where applied='YES' AND SEQUENCE#=(SELECT MAX(SEQUENCE#)  FROM V$ARCHIVED_LOG WHERE applied='YES');

網(wǎng)站標(biāo)題：dataguard主備延遲多長時間的2種查詢方法
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