VarjuOrg

Linux / Windows – what's the difference…

Oracle & Archivelogs & STBY Database

Hi,

I have wondered about SQL query: select max(sequence#) from v$archived_log where applied='YES' same way as others – that when you manually apply archivelogs to standby database then why will be there difference between PRD and STBY databases when executing that query…
The answer is quite simple:
For manual recovered history you have to look at v$log_history instead of v$archived_log.
And as far I have found out, manual recovery never writes logs in v$archived_log, you have to check log_history or alertlog file.

So the correct command on STBY DB would be:
select max(SEQUENCE#) from v$log_history;

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