PL/SQL Procedure

i have created a procedure named sch_proc but when i try to execute the query i get an error saying:

ORA-06550: line 2, column 8:
PLS-00302: component 'SCH_PROC' must be declared
ORA-06550: line 2, column 1:
PL/SQL: Statement ignored

the code is:

CREATE OR REPLACE PROCEDURE Sch_Proc(b IN NUMBER)
AS
duedate SCH.due_date%TYPE;
counts NUMBER(7);
infos VARCHAR2(100);
CURSOR sch_cur IS SELECT COUNT(t1.due_date) Scheduled_Events,t1.due_date, t2.case_id || ' ' ||t2.client_name || ' ' || t2.T AS info
FROM SCH t1, SCH t2 WHERE t1.due_date = t2.due_date
GROUP BY t1.due_date,t2.client_name,t2.t,t2.case_id;
BEGIN
IF b= 1 THEN
OPEN sch_cur;
LOOP
FETCH sch_cur INTO counts,duedate,infos;
IF duedate = duedate AND counts = 1 OR counts - 2 = 1 OR counts - 1 = 1 THEN
INSERT INTO TEMP(due_date,scheduled_events,slot1) VALUES(duedate,counts,infos);
ELSIF duedate = duedate AND counts = 2 OR counts - 1 = 2 THEN
UPDATE TEMP SET slot2 = infos WHERE due_date = duedate;
ELSIF duedate = duedate AND counts = 3 THEN
UPDATE TEMP SET slot3 = infos WHERE due_date = duedate;
END IF;
END LOOP;
CLOSE sch_cur;
END IF;
COMMIT;
END Sch_Proc;

please help me regarding this.

Thanks in Advance
Madhavan G V

you made a mistake in procedures declaration.
The syntax is PROCEDURE name(parameter IN DATATYPE) AS ...

try this way: