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. |