Strange ORA-00907: missing right parenthesis - sql

Question

The following code executes without error and produces the expected.
SELECT s.product_ID, s.price, s.quantity, d.wholesale_ID
FROM
(
SELECT product_ID, MIN(min_price) as price, quantity
FROM
(
SELECT SUM(ci.quantity) as quantity, MIN(d.price) as min_price, ci.product_ID as product_ID, wholesale_ID
FROM "Customer order" co,
"CO Item" ci,
deal d
WHERE co.processed = 0
AND co.ID = ci.order_ID
AND d.product_ID = ci.product_ID
GROUP BY ci.product_ID, d.wholesale_ID
ORDER BY ci.product_ID
)
GROUP BY product_ID, quantity
ORDER BY product_ID
) s,
deal d
WHERE s.product_ID = d.product_ID
AND s.price = d.price
ORDER BY d.wholesale_ID
When I try to compile it into a procedure as a cursor, I get 'ORA-00907 missing right parenthesis' error. I'm using Oracle SQL Developer.
CREATE OR REPLACE PROCEDURE createWholesaleOrders IS
CURSOR Curser IS(
SELECT s.product_ID, s.price, s.quantity, d.wholesale_ID
FROM
(
SELECT product_ID, MIN(min_price) as price, quantity
FROM
(
SELECT SUM(ci.quantity) as quantity, MIN(d.price) as min_price, ci.product_ID as product_ID, wholesale_ID
FROM "Customer order" co,
"CO Item" ci,
deal d
WHERE co.processed = 0
AND co.ID = ci.order_ID
AND d.product_ID = ci.product_ID
GROUP BY ci.product_ID, d.wholesale_ID
ORDER BY ci.product_ID
)
GROUP BY product_ID, quantity
ORDER BY product_ID
) s,
deal d
WHERE s.product_ID = d.product_ID
AND s.price = d.price
ORDER BY d.wholesale_ID -- < MISSING RIGHT PARENTHESIS HERE
);
Pointer Curser%rowtype;
current_wholesale NUMBER := -1;
current_order NUMBER := -1;
BEGIN
OPEN Curser;
LOOP
FETCH Curser INTO Pointer;
EXIT WHEN Curser%NOTFOUND;
IF current_wholesale != Pointer.wholesale_ID THEN
current_order := wholesale_order_sq.NEXTVAL;
INSERT INTO "Wholesale order" (ID, wholesale_ID, "date") VALUES(current_order, Pointer.wholesale_ID, sysdate);
current_wholesale := Pointer.wholesale_ID;
END IF;
INSERT INTO "WO Item" (ID, order_ID, product_ID, quantity, price)
VALUES(wo_item_sq.NEXTVAL, current_order, Pointer.product_ID, Pointer.quantity, Pointer.price);
UPDATE "CO Item"
SET "CO Item"."wholesale-order_ID" = current_order
WHERE "CO Item".order_ID IN (
SELECT "Customer order".ID
FROM "Customer order"
WHERE "Customer order".processed = 0
)
AND "CO Item".product_ID = Pointer.product_ID;
END LOOP;
UPDATE "Customer order"
SET processed = 1
WHERE processed = 0;
END;
Updated to include full code. There should be no errors on other places.

Answer 1

For whatever reason, the compiler does not accept the parens around the select in this cursor (as originally suggested by a_horse_with_no_name), although there is nothing inherently wrong with it as the following code compiles fine for me:
create or replace
procedure test is
cursor c is (select 1 from dual);
begin
null;
end;
However, if I remove the parens in your code, it does compile and refuses to compile for me otherwise. Sounds like a compiler bug to me.