Deleting Archivelog.

RMAN>DELETE ARCHIVELOG ALL;

RMAN>DELETE ARCHIVELOG UNTIL TIME 'SYSDATE-1';

RMAN>DELETE ARCHIVELOG FROM TIME 'SYSDATE-1';

RMAN>DELETE ARCHIVELOG FROM TIME 'SYSDATE-2' UNTIL TIME 'SYSDATE-1';

RMAN>DELETE ARCHIVELOG FROM SEQUENCE 100;

RMAN>DELETE ARCHIVELOG UNTIL SEQUENCE 100;

RMAN>DELETE ARCHIVELOG FROM SEQUENCE 100 UNTIL SEQUENCE 150;