PL/SQL Variable parameters in procedure - sql

Question

I need to create a procedure that allows a user to input information for an order (which is below), but also for n number of suborders (where 2 ≤ n ≥ 10). How would I be able to incorporate this into the procedure I already have? I'm using SQLPlus. Any help or advice would be greatly appreciated. :)
CREATE OR REPLACE PROCEDURE VIEW_ORDER(ORDERS IN CHAR)
AS
CURSOR ORDER_CUR IS
SELECT * FROM SUBORDERS
WHERE ORDER_NO = ORDERS;
BEGIN
FOR O_REC IN ORDER_CUR
LOOP
DBMS_OUTPUT.PUT_LINE('Product Code: ' || O_REC.prod_id
|| ' Order: ' || O_REC.order_no
|| ' Suborder: ' || O_REC.suborder_no
|| ' Quantity: ' || O_REC.quantity);
END LOOP;
EXCEPTION
WHEN no_data_found THEN
DBMS_OUTPUT.PUT_LINE ('Product number does not exist');
WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE ('Operation failed ' || 'SQLCODE: ' || SQLCODE);
ROLLBACK;
END;
/

Answer 1

You can use for an input sqlplus command ACCEPT and make another loop to take n suborders.
If I didn't missunderstood your question it would be something like this:
-- You have to create the input outside the procedure
accept n char prompt 'Please enter n suborders: '
CREATE OR REPLACE PROCEDURE VIEW_ORDER(ORDERS IN CHAR)
AS
CURSOR ORDER_CUR IS
SELECT * FROM SUBORDERS
WHERE ORDER_NO = ORDERS;
BEGIN
FOR O_REC IN ORDER_CUR
LOOP
-- Here we check if n<=2
IF n>=2 THEN
-- here if n<=10
WHILE n<=10
LOOP
DBMS_OUTPUT.PUT_LINE('Product Code: ' || O_REC.prod_id
|| ' Order: ' || O_REC.order_no
|| ' Suborder: ' || O_REC.suborder_no
|| ' Quantity: ' || O_REC.quantity);
END LOOP;
END IF;
END LOOP;
EXCEPTION
WHEN no_data_found THEN
DBMS_OUTPUT.PUT_LINE ('Product number does not exist');
WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE ('Operation failed ' || 'SQLCODE: '
||
SQLCODE);
ROLLBACK;
END;
/