ORA-19809

ORA-19815: WARNING: db_recovery_file_dest_size of 8499757056 bytes is 100.00% used, and has 0 remaining bytes available.
2019-08-25T07:45:13.120912-07:00
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You have following choices to free up space from recovery area:
1. Consider changing RMAN RETENTION POLICY. If you are using Data Guard,
   then consider changing RMAN ARCHIVELOG DELETION POLICY.
2. Back up files to tertiary device such as tape using RMAN
   BACKUP RECOVERY AREA command.
3. Add disk space and increase db_recovery_file_dest_size parameter to
   reflect the new space.
4. Delete unnecessary files using RMAN DELETE command. If an operating
   system command was used to delete files, then use RMAN CROSSCHECK and
   DELETE EXPIRED commands.

SQL> ALTER SYSTEM SETDB_RECOVERY_FILE_DEST_SIZE = 20G SCOPE=BOTH