Packages:
CREATE OR REPLACE PACKAGE BODY pkg
AS
PROCEDURE volunteers_insert(v_id IN number, v_name IN varchar2,v_type IN varchar2, v_address IN varchar2,v_gender IN varchar2, v_contact IN NUMBER, firstname IN varchar2, lastname in varchar2, phone in number)
IS
BEGIN
	INSERT INTO VOLUNTEERS(vol_id,vol_name,vol_type,vol_address,vol_gender,vol_contact,gp_firstname,gp_lastname,gp_phone ) VALUES
                 (VOLUNTEERS_seq.nextval, v_name ,v_type , v_address ,v_gender , v_contact, firstname , lastname, phone );
	COMMIT;
END volunteers_insert;

FUNCTION volunteer_count RETURN number
IS
	abc number;
BEGIN
	SELECT COUNT(vol_id) INTO abc FROM vol_project GROUP BY p_id;
	RETURN abc;
END volunteer_count;
END;



CODE:
DROP PACKAGE package;
CREATE OR REPLACE PACKAGE package
AS
PROCEDURE v_insert(vol_id IN number, vol_name IN varchar2,v_type IN varchar2, vol_address IN varchar2,vol_gender IN varchar2, vol_contact IN NUMBER, firstname IN varchar2, lastname in varchar2, phone in number);
FUNCTION v_count RETURN number;
END;