Standby Sync Status Check

TOP

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-Standby Database Sync Status Check
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select name,open_mode,database_role from v$database
/

set line 200
col DEST_NAME for a50
col BINDING for a10
select PROCESS,STATUS,GROUP#,THREAD#,SEQUENCE#,BLOCK#,DELAY_MINS from v$managed_standby
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archive log list

select count(*) from v$archive_gap
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select max(sequence#) from v$log_history
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col MESSAGE for a150
select * from(select message from v$dataguard_status where message like '%Media Recovery Log%' order by message desc) where rownum<=5
/