ORA-19905: log_archive_format must contain %%s, %%t and %%r
Cause: log_archive_format is missing a mandatory format element. Starting with Oracle 10i, archived log file names must contain each of the elements %s(sequence), %t(thread), and %r(resetlogs id) to ensure that all archived log file names are unique
Action: Add the missing format elements to log_archive_format
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