Notes for deleting archived logs

1. delete archivelog all will delete all archived logs without reservation (corresponding records are recorded in the control file)

2. the archived log information is recorded in the control file. the lifetime and total number of retainable logs are also limited by the control file creation and the control_file_record_keep_time parameter.

3. This method does not work for archived logs that have been overwritten in the control file. Using backup archivelog all delete input also does not work.

4. Note that there are some differences between delete input and delete all input in backup archivelog all. The former deletes archived logs that have only been backed up, the latter deletes all archived logs in multiple archiving locations.

5. View v $ archived_log or gv $ archived_log provides detailed information about archived logs.

6. We recommend that you back up and archive logs before deleting them. Note: The archivedlog folder cannot be empty under RAC + ASM. Otherwise, the entire folder, together with the upper-level empty directory, will be deleted.